668792367 has 12 divisors (see below), whose sum is σ = 1008035184. Its totient is φ = 426476160.

The previous prime is 668792363. The next prime is 668792417. The reversal of 668792367 is 763297866.

It is not a de Polignac number, because 668792367 - 2² = 668792363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668792363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1615234 + ... + 1615647.

It is an arithmetic number, because the mean of its divisors is an integer number (84002932).

Almost surely, 2^668792367 is an apocalyptic number.

668792367 is a deficient number, since it is larger than the sum of its proper divisors (339242817).

668792367 is a wasteful number, since it uses less digits than its factorization.

668792367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230910 (or 3230907 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 668792367 is about 25861.0202234947. The cubic root of 668792367 is about 874.5079647827.

The spelling of 668792367 in words is "six hundred sixty-eight million, seven hundred ninety-two thousand, three hundred sixty-seven".