72773166 has 16 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 24121848.

The previous prime is 72773153. The next prime is 72773171. The reversal of 72773166 is 66137727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32806 + ... + 34953.

It is an arithmetic number, because the mean of its divisors is an integer number (9147600).

Almost surely, 2^72773166 is an apocalyptic number.

72773166 is an abundant number, since it is smaller than the sum of its proper divisors (73588434).

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

72773166 is a wasteful number, since it uses less digits than its factorization.

72773166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67943.

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

The square root of 72773166 is about 8530.7189614944. The cubic root of 72773166 is about 417.5005863713.

The spelling of 72773166 in words is "seventy-two million, seven hundred seventy-three thousand, one hundred sixty-six".