68492631 has 8 divisors (see below), whose sum is σ = 92210560. Its totient is φ = 45218232.

The previous prime is 68492623. The next prime is 68492647. The reversal of 68492631 is 13629486.

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

It is not a de Polignac number, because 68492631 - 2³ = 68492623 is a prime.

It is a super-2 number, since 2×68492631² = 9382481002604322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68492631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68492651) 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 7 ways as a sum of consecutive naturals, for example, 110521 + ... + 111138.

It is an arithmetic number, because the mean of its divisors is an integer number (11526320).

Almost surely, 2^68492631 is an apocalyptic number.

68492631 is a deficient number, since it is larger than the sum of its proper divisors (23717929).

68492631 is a wasteful number, since it uses less digits than its factorization.

68492631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221765.

The product of its digits is 62208, while the sum is 39.

The square root of 68492631 is about 8276.0274890795. The cubic root of 68492631 is about 409.1488011763.

The spelling of 68492631 in words is "sixty-eight million, four hundred ninety-two thousand, six hundred thirty-one".