88965009 has 24 divisors (see below), whose sum is σ = 151603712. Its totient is φ = 49196160.

The previous prime is 88965007. The next prime is 88965017. The reversal of 88965009 is 90056988.

It is not a de Polignac number, because 88965009 - 2¹ = 88965007 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88965001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20824 + ... + 24729.

Almost surely, 2^88965009 is an apocalyptic number.

It is an amenable number.

88965009 is a deficient number, since it is larger than the sum of its proper divisors (62638703).

88965009 is a wasteful number, since it uses less digits than its factorization.

88965009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45597 (or 45594 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 88965009 is about 9432.1264304503. The cubic root of 88965009 is about 446.4159903173.

The spelling of 88965009 in words is "eighty-eight million, nine hundred sixty-five thousand, nine".