722980977 has 32 divisors (see below), whose sum is σ = 1018997760. Its totient is φ = 455362560.

The previous prime is 722980969. The next prime is 722980997. The reversal of 722980977 is 779089227.

722980977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 722980977 - 2³ = 722980969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722980997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739513 + ... + 740489.

It is an arithmetic number, because the mean of its divisors is an integer number (31843680).

Almost surely, 2^722980977 is an apocalyptic number.

It is an amenable number.

722980977 is a deficient number, since it is larger than the sum of its proper divisors (296016783).

722980977 is a wasteful number, since it uses less digits than its factorization.

722980977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 722980977 is about 26888.3055806795. The cubic root of 722980977 is about 897.5161873023.

The spelling of 722980977 in words is "seven hundred twenty-two million, nine hundred eighty thousand, nine hundred seventy-seven".