88573497769 has 3 divisors (see below), whose sum is σ = 88573795383. Its totient is φ = 88573200156.

The previous prime is 88573497709. The next prime is 88573497809. The reversal of 88573497769 is 96779437588.

The square root of 88573497769 is 297613.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 19200259225 + 69373238544 = 138565^2 + 263388^2 .

It is not a de Polignac number, because 88573497769 - 2²⁹ = 88036626857 is a prime.

It is a super-2 number, since 2×88573497769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88573497709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 148807 + ... + 446419.

It is an arithmetic number, because the mean of its divisors is an integer number (29524598461).

Almost surely, 2^88573497769 is an apocalyptic number.

88573497769 is the 297613-rd square number.

88573497769 is the 148807-th centered octagonal number.

It is an amenable number.

88573497769 is a deficient number, since it is larger than the sum of its proper divisors (297614).

88573497769 is an frugal number, since it uses more digits than its factorization.

88573497769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595226 (or 297613 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 73.

It can be divided in two parts, 885734 and 97769, that added together give a triangular number (983503 = T₁₄₀₂).

The spelling of 88573497769 in words is "eighty-eight billion, five hundred seventy-three million, four hundred ninety-seven thousand, seven hundred sixty-nine".