72357966 has 24 divisors (see below), whose sum is σ = 165027720. Its totient is φ = 22849776.

The previous prime is 72357953. The next prime is 72357983. The reversal of 72357966 is 66975327.

72357966 is a `hidden beast` number, since 72 + 3 + 579 + 6 + 6 = 666.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105445 + ... + 106128.

It is an arithmetic number, because the mean of its divisors is an integer number (6876155).

Almost surely, 2^72357966 is an apocalyptic number.

72357966 is an abundant number, since it is smaller than the sum of its proper divisors (92669754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72357966 is a wasteful number, since it uses less digits than its factorization.

72357966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211600 (or 211597 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 72357966 is about 8506.3485703326. The cubic root of 72357966 is about 416.7050689583.

The spelling of 72357966 in words is "seventy-two million, three hundred fifty-seven thousand, nine hundred sixty-six".