86427631 has 8 divisors (see below), whose sum is σ = 88779600. Its totient is φ = 84087360.

The previous prime is 86427623. The next prime is 86427673. The reversal of 86427631 is 13672468.

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

It is a cyclic number.

It is not a de Polignac number, because 86427631 - 2³ = 86427623 is a prime.

It is a super-2 number, since 2×86427631² = 14939470800544322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86427611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13240 + ... + 18658.

It is an arithmetic number, because the mean of its divisors is an integer number (11097450).

Almost surely, 2^86427631 is an apocalyptic number.

86427631 is a deficient number, since it is larger than the sum of its proper divisors (2351969).

86427631 is a wasteful number, since it uses less digits than its factorization.

86427631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849.

The product of its digits is 48384, while the sum is 37.

The square root of 86427631 is about 9296.6462232356. The cubic root of 86427631 is about 442.1309014225.

The spelling of 86427631 in words is "eighty-six million, four hundred twenty-seven thousand, six hundred thirty-one".