790009 has 6 divisors (see below), whose sum is σ = 868490. Its totient is φ = 718080.

The previous prime is 790003. The next prime is 790021. The reversal of 790009 is 900097.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 278784 = 715^2 + 528^2 .

It is not a de Polignac number, because 790009 - 2⁵ = 789977 is a prime.

It is a super-2 number, since 2×790009² = 1248228440162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (790003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3144 + ... + 3385.

2⁷⁹⁰⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

790009 is a deficient number, since it is larger than the sum of its proper divisors (78481).

790009 is a wasteful number, since it uses less digits than its factorization.

790009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551 (or 6540 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 790009 is about 888.8245046127. The cubic root of 790009 is about 92.4437057031.

The spelling of 790009 in words is "seven hundred ninety thousand, nine".