797586921 has 24 divisors (see below), whose sum is σ = 1216735520. Its totient is φ = 502065216.

The previous prime is 797586901. The next prime is 797586931. The reversal of 797586921 is 129685797.

It is not a de Polignac number, because 797586921 - 2⁶ = 797586857 is a prime.

It is a super-2 number, since 2×797586921² = 1272289793100520482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797586901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44901 + ... + 60093.

Almost surely, 2^797586921 is an apocalyptic number.

It is an amenable number.

797586921 is a deficient number, since it is larger than the sum of its proper divisors (419148599).

797586921 is a wasteful number, since it uses less digits than its factorization.

797586921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15525 (or 15522 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 797586921 is about 28241.5814181855. The cubic root of 797586921 is about 927.3834499718.

The spelling of 797586921 in words is "seven hundred ninety-seven million, five hundred eighty-six thousand, nine hundred twenty-one".