790734521 has 4 divisors (see below), whose sum is σ = 803697444. Its totient is φ = 777771600.

The previous prime is 790734517. The next prime is 790734541. The reversal of 790734521 is 125437097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125437097 = 2411 ⋅52027.

It can be written as a sum of positive squares in 2 ways, for example, as 25603600 + 765130921 = 5060^2 + 27661^2 .

It is a cyclic number.

It is not a de Polignac number, because 790734521 - 2² = 790734517 is a prime.

It is a super-2 number, since 2×790734521² = 1250522165402198882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790734541) 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, 6481370 + ... + 6481491.

It is an arithmetic number, because the mean of its divisors is an integer number (200924361).

Almost surely, 2^790734521 is an apocalyptic number.

It is an amenable number.

790734521 is a deficient number, since it is larger than the sum of its proper divisors (12962923).

790734521 is a wasteful number, since it uses less digits than its factorization.

790734521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962922.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 790734521 is about 28120.0021514935. The cubic root of 790734521 is about 924.7199623680.

The spelling of 790734521 in words is "seven hundred ninety million, seven hundred thirty-four thousand, five hundred twenty-one".