88691687 has 8 divisors (see below), whose sum is σ = 101421216. Its totient is φ = 75976992.

The previous prime is 88691623. The next prime is 88691689. The reversal of 88691687 is 78619688.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 88691687 - 2⁶ = 88691623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88691689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16373 + ... + 21105.

It is an arithmetic number, because the mean of its divisors is an integer number (12677652).

Almost surely, 2^88691687 is an apocalyptic number.

88691687 is a deficient number, since it is larger than the sum of its proper divisors (12729529).

88691687 is a wasteful number, since it uses less digits than its factorization.

88691687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7417.

The product of its digits is 1161216, while the sum is 53.

The square root of 88691687 is about 9417.6263994703. The cubic root of 88691687 is about 445.9583554191.

The spelling of 88691687 in words is "eighty-eight million, six hundred ninety-one thousand, six hundred eighty-seven".