791973489 has 16 divisors (see below), whose sum is σ = 1073945600. Its totient is φ = 519066576.

The previous prime is 791973473. The next prime is 791973521. The reversal of 791973489 is 984379197.

It is not a de Polignac number, because 791973489 - 2⁴ = 791973473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791973449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33732 + ... + 52170.

It is an arithmetic number, because the mean of its divisors is an integer number (67121600).

Almost surely, 2^791973489 is an apocalyptic number.

It is an amenable number.

791973489 is a deficient number, since it is larger than the sum of its proper divisors (281972111).

791973489 is a wasteful number, since it uses less digits than its factorization.

791973489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18684.

The product of its digits is 3429216, while the sum is 57.

The square root of 791973489 is about 28142.0235413163. The cubic root of 791973489 is about 925.2026783536.

The spelling of 791973489 in words is "seven hundred ninety-one million, nine hundred seventy-three thousand, four hundred eighty-nine".