772840216 has 16 divisors (see below), whose sum is σ = 1449874800. Its totient is φ = 386206944.

The previous prime is 772840207. The next prime is 772840231. The reversal of 772840216 is 612048277.

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, 10675 + ... + 40738.

It is an arithmetic number, because the mean of its divisors is an integer number (90617175).

Almost surely, 2^772840216 is an apocalyptic number.

It is an amenable number.

772840216 is a deficient number, since it is larger than the sum of its proper divisors (677034584).

772840216 is a wasteful number, since it uses less digits than its factorization.

772840216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53298 (or 53294 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 772840216 is about 27800.0038848918. The cubic root of 772840216 is about 917.6912082837.

The spelling of 772840216 in words is "seven hundred seventy-two million, eight hundred forty thousand, two hundred sixteen".