72772446 has 8 divisors (see below), whose sum is σ = 145544904. Its totient is φ = 24257480.

The previous prime is 72772439. The next prime is 72772463. The reversal of 72772446 is 64427727.

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

72772446 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6064365 + ... + 6064376.

It is an arithmetic number, because the mean of its divisors is an integer number (18193113).

Almost surely, 2^72772446 is an apocalyptic number.

72772446 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.

72772446 is a wasteful number, since it uses less digits than its factorization.

72772446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128746.

The product of its digits is 131712, while the sum is 39.

The square root of 72772446 is about 8530.6767609610. The cubic root of 72772446 is about 417.4992094837.

The spelling of 72772446 in words is "seventy-two million, seven hundred seventy-two thousand, four hundred forty-six".