790131021 has 4 divisors (see below), whose sum is σ = 1053508032. Its totient is φ = 526754012.

The previous prime is 790131019. The next prime is 790131031. The reversal of 790131021 is 120131097.

790131021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 790131021 - 2¹ = 790131019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 790130982 and 790131000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (790131031) 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, 131688501 + ... + 131688506.

It is an arithmetic number, because the mean of its divisors is an integer number (263377008).

Almost surely, 2^790131021 is an apocalyptic number.

It is an amenable number.

790131021 is a deficient number, since it is larger than the sum of its proper divisors (263377011).

790131021 is a wasteful number, since it uses less digits than its factorization.

790131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263377010.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 790131021 is about 28109.2693074722. The cubic root of 790131021 is about 924.4846492855.

The spelling of 790131021 in words is "seven hundred ninety million, one hundred thirty-one thousand, twenty-one".