88644645 has 32 divisors (see below), whose sum is σ = 164448000. Its totient is φ = 45220032.

The previous prime is 88644607. The next prime is 88644653. The reversal of 88644645 is 54644688.

It is not a de Polignac number, because 88644645 - 2⁸ = 88644389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 88644645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11170 + ... + 17379.

It is an arithmetic number, because the mean of its divisors is an integer number (5139000).

Almost surely, 2^88644645 is an apocalyptic number.

It is an amenable number.

88644645 is a deficient number, since it is larger than the sum of its proper divisors (75803355).

88644645 is a wasteful number, since it uses less digits than its factorization.

88644645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28586 (or 28580 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 88644645 is about 9415.1285174447. The cubic root of 88644645 is about 445.8794961565.

The spelling of 88644645 in words is "eighty-eight million, six hundred forty-four thousand, six hundred forty-five".