790641 has 20 divisors (see below), whose sum is σ = 1213872. Its totient is φ = 512568.

The previous prime is 790637. The next prime is 790649. The reversal of 790641 is 146097.

It is not a de Polignac number, because 790641 - 2² = 790637 is a prime.

It is a super-2 number, since 2×790641² = 1250226381762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (790649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3370 + ... + 3596.

2⁷⁹⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

790641 is a deficient number, since it is larger than the sum of its proper divisors (423231).

790641 is a wasteful number, since it uses less digits than its factorization.

790641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 790641 is about 889.1799592883. The cubic root of 790641 is about 92.4683505065.

It can be divided in two parts, 790 and 641, that added together give a triangular number (1431 = T₅₃).

The spelling of 790641 in words is "seven hundred ninety thousand, six hundred forty-one".