72713766 has 8 divisors (see below), whose sum is σ = 145427544. Its totient is φ = 24237920.

The previous prime is 72713761. The next prime is 72713789. The reversal of 72713766 is 66731727.

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

72713766 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72713761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6059475 + ... + 6059486.

It is an arithmetic number, because the mean of its divisors is an integer number (18178443).

Almost surely, 2^72713766 is an apocalyptic number.

72713766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72713766 is a wasteful number, since it uses less digits than its factorization.

72713766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118966.

The product of its digits is 74088, while the sum is 39.

The square root of 72713766 is about 8527.2367153727. The cubic root of 72713766 is about 417.3869625973.

The spelling of 72713766 in words is "seventy-two million, seven hundred thirteen thousand, seven hundred sixty-six".