790609 has 4 divisors (see below), whose sum is σ = 832240. Its totient is φ = 748980.

The previous prime is 790607. The next prime is 790613. The reversal of 790609 is 906097.

790609 = 20² + 21² + ... + 133².

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, and also an emirpimes, since its reverse is a distinct semiprime: 906097 = 829 ⋅1093.

It is not a de Polignac number, because 790609 - 2¹ = 790607 is a prime.

It is a Duffinian number.

790609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (790607) 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, 20787 + ... + 20824.

It is an arithmetic number, because the mean of its divisors is an integer number (208060).

2⁷⁹⁰⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

790609 is a deficient number, since it is larger than the sum of its proper divisors (41631).

790609 is a wasteful number, since it uses less digits than its factorization.

790609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41630.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 790609 is about 889.1619649985. The cubic root of 790609 is about 92.4671029840.

The spelling of 790609 in words is "seven hundred ninety thousand, six hundred nine".