68774631 has 8 divisors (see below), whose sum is σ = 94861680. Its totient is φ = 44268672.

The previous prime is 68774621. The next prime is 68774653. The reversal of 68774631 is 13647786.

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

It is not a de Polignac number, because 68774631 - 2¹⁸ = 68512487 is a prime.

It is a super-2 number, since 2×68774631² = 9459899738372322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68774621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395170 + ... + 395343.

It is an arithmetic number, because the mean of its divisors is an integer number (11857710).

Almost surely, 2^68774631 is an apocalyptic number.

68774631 is a deficient number, since it is larger than the sum of its proper divisors (26087049).

68774631 is a wasteful number, since it uses less digits than its factorization.

68774631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790545.

The product of its digits is 169344, while the sum is 42.

The square root of 68774631 is about 8293.0471480632. The cubic root of 68774631 is about 409.7095523734.

The spelling of 68774631 in words is "sixty-eight million, seven hundred seventy-four thousand, six hundred thirty-one".