72774806 has 16 divisors (see below), whose sum is σ = 122671584. Its totient is φ = 32127744.

The previous prime is 72774761. The next prime is 72774809. The reversal of 72774806 is 60847727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72774809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60251 + ... + 61446.

It is an arithmetic number, because the mean of its divisors is an integer number (7666974).

Almost surely, 2^72774806 is an apocalyptic number.

72774806 is a deficient number, since it is larger than the sum of its proper divisors (49896778).

72774806 is a wasteful number, since it uses less digits than its factorization.

72774806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121735.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 72774806 is about 8530.8150841523. The cubic root of 72774806 is about 417.5037225815.

The spelling of 72774806 in words is "seventy-two million, seven hundred seventy-four thousand, eight hundred six".