88409745 has 32 divisors (see below), whose sum is σ = 158250240. Its totient is φ = 46828800.

The previous prime is 88409693. The next prime is 88409749. The reversal of 88409745 is 54790488.

It is not a de Polignac number, because 88409745 - 2⁶ = 88409681 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 88409745.

It is not an unprimeable number, because it can be changed into a prime (88409749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18217 + ... + 22553.

It is an arithmetic number, because the mean of its divisors is an integer number (4945320).

Almost surely, 2^88409745 is an apocalyptic number.

It is an amenable number.

88409745 is a deficient number, since it is larger than the sum of its proper divisors (69840495).

88409745 is a wasteful number, since it uses less digits than its factorization.

88409745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502 (or 4496 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 88409745 is about 9402.6456383297. The cubic root of 88409745 is about 445.4853014684.

The spelling of 88409745 in words is "eighty-eight million, four hundred nine thousand, seven hundred forty-five".