790533521 has 4 divisors (see below), whose sum is σ = 790603044. Its totient is φ = 790464000.

The previous prime is 790533503. The next prime is 790533547. The reversal of 790533521 is 125335097.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15523600 + 775009921 = 3940^2 + 27839^2 .

It is a cyclic number.

It is not a de Polignac number, because 790533521 - 2²⁶ = 723424657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790533421) 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, 13280 + ... + 41921.

It is an arithmetic number, because the mean of its divisors is an integer number (197650761).

Almost surely, 2^790533521 is an apocalyptic number.

It is an amenable number.

790533521 is a deficient number, since it is larger than the sum of its proper divisors (69523).

790533521 is a wasteful number, since it uses less digits than its factorization.

790533521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69522.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 790533521 is about 28116.4279559122. The cubic root of 790533521 is about 924.6416029614.

The spelling of 790533521 in words is "seven hundred ninety million, five hundred thirty-three thousand, five hundred twenty-one".