72770296 has 16 divisors (see below), whose sum is σ = 136575000. Its totient is φ = 36350304.

The previous prime is 72770293. The next prime is 72770303. The reversal of 72770296 is 69207727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72770293) 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 3 ways as a sum of consecutive naturals, for example, 5955 + ... + 13453.

Almost surely, 2^72770296 is an apocalyptic number.

It is an amenable number.

72770296 is a deficient number, since it is larger than the sum of its proper divisors (63804704).

72770296 is a wasteful number, since it uses less digits than its factorization.

72770296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718 (or 8714 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 72770296 is about 8530.5507442369. The cubic root of 72770296 is about 417.4950978903.

The spelling of 72770296 in words is "seventy-two million, seven hundred seventy thousand, two hundred ninety-six".