72668367 has 8 divisors (see below), whose sum is σ = 107656880. Its totient is φ = 48445560.

The previous prime is 72668363. The next prime is 72668381. The reversal of 72668367 is 76386627.

It is not a de Polignac number, because 72668367 - 2² = 72668363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72668363) 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, 1345684 + ... + 1345737.

It is an arithmetic number, because the mean of its divisors is an integer number (13457110).

Almost surely, 2^72668367 is an apocalyptic number.

72668367 is a deficient number, since it is larger than the sum of its proper divisors (34988513).

72668367 is a wasteful number, since it uses less digits than its factorization.

72668367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691430 (or 2691424 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 72668367 is about 8524.5743002217. The cubic root of 72668367 is about 417.3000790229.

The spelling of 72668367 in words is "seventy-two million, six hundred sixty-eight thousand, three hundred sixty-seven".