86631235 has 16 divisors (see below), whose sum is σ = 111173472. Its totient is φ = 64576000.

The previous prime is 86631211. The next prime is 86631239. The reversal of 86631235 is 53213668.

It is not a de Polignac number, because 86631235 - 2¹⁹ = 86106947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86631235.

It is not an unprimeable number, because it can be changed into a prime (86631239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3540 + ... + 13630.

It is an arithmetic number, because the mean of its divisors is an integer number (6948342).

Almost surely, 2^86631235 is an apocalyptic number.

86631235 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86631235 is a deficient number, since it is larger than the sum of its proper divisors (24542237).

86631235 is a wasteful number, since it uses less digits than its factorization.

86631235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214.

The product of its digits is 25920, while the sum is 34.

The square root of 86631235 is about 9307.5901822115. The cubic root of 86631235 is about 442.4778160328.

The spelling of 86631235 in words is "eighty-six million, six hundred thirty-one thousand, two hundred thirty-five".