797138465 has 12 divisors (see below), whose sum is σ = 969881724. Its totient is φ = 628953984.

The previous prime is 797138417. The next prime is 797138467. The reversal of 797138465 is 564831797.

797138465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 44568976 + 752569489 = 6676^2 + 27433^2 .

It is not a de Polignac number, because 797138465 - 2⁶ = 797138401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797138467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11687 + ... + 41603.

It is an arithmetic number, because the mean of its divisors is an integer number (80823477).

Almost surely, 2^797138465 is an apocalyptic number.

It is an amenable number.

797138465 is a deficient number, since it is larger than the sum of its proper divisors (172743259).

797138465 is an equidigital number, since it uses as much as digits as its factorization.

797138465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30068 (or 29995 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 797138465 is about 28233.6406614521. The cubic root of 797138465 is about 927.2096053274.

The spelling of 797138465 in words is "seven hundred ninety-seven million, one hundred thirty-eight thousand, four hundred sixty-five".