88699631 has 2 divisors, whose sum is σ = 88699632. Its totient is φ = 88699630.

The previous prime is 88699621. The next prime is 88699679. The reversal of 88699631 is 13699688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88699631 - 2¹⁰ = 88698607 is a prime.

It is a super-2 number, since 2×88699631² = 15735249079072322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 88699631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88699621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44349815 + 44349816.

It is an arithmetic number, because the mean of its divisors is an integer number (44349816).

Almost surely, 2^88699631 is an apocalyptic number.

88699631 is a deficient number, since it is larger than the sum of its proper divisors (1).

88699631 is an equidigital number, since it uses as much as digits as its factorization.

88699631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 50.

The square root of 88699631 is about 9418.0481523509. The cubic root of 88699631 is about 445.9716696598.

The spelling of 88699631 in words is "eighty-eight million, six hundred ninety-nine thousand, six hundred thirty-one".