86941631 has 12 divisors (see below), whose sum is σ = 101553480. Its totient is φ = 74214000.

The previous prime is 86941609. The next prime is 86941643. The reversal of 86941631 is 13614968.

It is not a de Polignac number, because 86941631 - 2⁶ = 86941567 is a prime.

It is a super-2 number, since 2×86941631² = 15117694401880322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86941651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8765 + ... + 15833.

It is an arithmetic number, because the mean of its divisors is an integer number (8462790).

Almost surely, 2^86941631 is an apocalyptic number.

86941631 is a deficient number, since it is larger than the sum of its proper divisors (14611849).

86941631 is a wasteful number, since it uses less digits than its factorization.

86941631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7334 (or 7327 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 86941631 is about 9324.2496212832. The cubic root of 86941631 is about 443.0056458167.

The spelling of 86941631 in words is "eighty-six million, nine hundred forty-one thousand, six hundred thirty-one".