88969513 has 4 divisors (see below), whose sum is σ = 89016148. Its totient is φ = 88922880.

The previous prime is 88969499. The next prime is 88969561. The reversal of 88969513 is 31596988.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65804544 + 23164969 = 8112^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 88969513 - 2²¹ = 86872361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88969213) 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, 20328 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (22254037).

Almost surely, 2^88969513 is an apocalyptic number.

It is an amenable number.

88969513 is a deficient number, since it is larger than the sum of its proper divisors (46635).

88969513 is a wasteful number, since it uses less digits than its factorization.

88969513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46634.

The product of its digits is 466560, while the sum is 49.

The square root of 88969513 is about 9432.3651858905. The cubic root of 88969513 is about 446.4235237049.

The spelling of 88969513 in words is "eighty-eight million, nine hundred sixty-nine thousand, five hundred thirteen".