88645791 has 16 divisors (see below), whose sum is σ = 127534176. Its totient is φ = 54445056.

The previous prime is 88645783. The next prime is 88645793. The reversal of 88645791 is 19754688.

It is not a de Polignac number, because 88645791 - 2³ = 88645783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88645791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88645793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21211 + ... + 25043.

It is an arithmetic number, because the mean of its divisors is an integer number (7970886).

Almost surely, 2^88645791 is an apocalyptic number.

88645791 is a deficient number, since it is larger than the sum of its proper divisors (38888385).

88645791 is a wasteful number, since it uses less digits than its factorization.

88645791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442.

The product of its digits is 483840, while the sum is 48.

The square root of 88645791 is about 9415.1893767465. The cubic root of 88645791 is about 445.8814175950.

The spelling of 88645791 in words is "eighty-eight million, six hundred forty-five thousand, seven hundred ninety-one".