86252691 has 48 divisors (see below), whose sum is σ = 141571584. Its totient is φ = 46480896.

The previous prime is 86252671. The next prime is 86252701. The reversal of 86252691 is 19625268.

It is not a de Polignac number, because 86252691 - 2¹¹ = 86250643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86252671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327826 + ... + 328088.

It is an arithmetic number, because the mean of its divisors is an integer number (2949408).

Almost surely, 2^86252691 is an apocalyptic number.

86252691 is a deficient number, since it is larger than the sum of its proper divisors (55318893).

86252691 is a wasteful number, since it uses less digits than its factorization.

86252691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 393 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 86252691 is about 9287.2326879432. The cubic root of 86252691 is about 441.8323910815.

The spelling of 86252691 in words is "eighty-six million, two hundred fifty-two thousand, six hundred ninety-one".