73552769 has 4 divisors (see below), whose sum is σ = 73579860. Its totient is φ = 73525680.

The previous prime is 73552757. The next prime is 73552777. The reversal of 73552769 is 96725537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96725537 = 811 ⋅119267.

It can be written as a sum of positive squares in 2 ways, for example, as 72471169 + 1081600 = 8513^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 73552769 - 2⁸ = 73552513 is a prime.

It is a super-2 number, since 2×73552769² = 10820019655134722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73552799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8954 + ... + 15075.

It is an arithmetic number, because the mean of its divisors is an integer number (18394965).

Almost surely, 2^73552769 is an apocalyptic number.

It is an amenable number.

73552769 is a deficient number, since it is larger than the sum of its proper divisors (27091).

73552769 is a wasteful number, since it uses less digits than its factorization.

73552769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27090.

The product of its digits is 396900, while the sum is 44.

The square root of 73552769 is about 8576.2910981379. The cubic root of 73552769 is about 418.9861581998.

The spelling of 73552769 in words is "seventy-three million, five hundred fifty-two thousand, seven hundred sixty-nine".