790932721 has 4 divisors (see below), whose sum is σ = 795031012. Its totient is φ = 786834432.

The previous prime is 790932707. The next prime is 790932731. The reversal of 790932721 is 127239097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 576720225 + 214212496 = 24015^2 + 14636^2 .

It is a cyclic number.

It is not a de Polignac number, because 790932721 - 2¹⁹ = 790408433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790932731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048856 + ... + 2049241.

It is an arithmetic number, because the mean of its divisors is an integer number (198757753).

Almost surely, 2^790932721 is an apocalyptic number.

It is an amenable number.

790932721 is a deficient number, since it is larger than the sum of its proper divisors (4098291).

790932721 is a wasteful number, since it uses less digits than its factorization.

790932721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098290.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 790932721 is about 28123.5261124917. The cubic root of 790932721 is about 924.7972171991.

The spelling of 790932721 in words is "seven hundred ninety million, nine hundred thirty-two thousand, seven hundred twenty-one".