791979825 has 48 divisors (see below), whose sum is σ = 1611591296. Its totient is φ = 334195200.

The previous prime is 791979809. The next prime is 791979863. The reversal of 791979825 is 528979197.

It is not a de Polignac number, because 791979825 - 2⁴ = 791979809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51196 + ... + 64845.

Almost surely, 2^791979825 is an apocalyptic number.

791979825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

791979825 is an abundant number, since it is smaller than the sum of its proper divisors (819611471).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791979825 is a wasteful number, since it uses less digits than its factorization.

791979825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116074 (or 116069 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 57.

The square root of 791979825 is about 28142.1361129535. The cubic root of 791979825 is about 925.2051456367.

The spelling of 791979825 in words is "seven hundred ninety-one million, nine hundred seventy-nine thousand, eight hundred twenty-five".