797619879 has 80 divisors (see below), whose sum is σ = 1403677440. Its totient is φ = 441987840.

The previous prime is 797619871. The next prime is 797619881. The reversal of 797619879 is 978916797.

797619879 is a `hidden beast` number, since 7 + 9 + 7 + 619 + 8 + 7 + 9 = 666.

It is not a de Polignac number, because 797619879 - 2³ = 797619871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797619871) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3780084 + ... + 3780294.

It is an arithmetic number, because the mean of its divisors is an integer number (17545968).

Almost surely, 2^797619879 is an apocalyptic number.

797619879 is a deficient number, since it is larger than the sum of its proper divisors (606057561).

797619879 is a wasteful number, since it uses less digits than its factorization.

797619879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 393 counting only the distinct ones).

The product of its digits is 12002256, while the sum is 63.

The square root of 797619879 is about 28242.1649134764. The cubic root of 797619879 is about 927.3962236194.

The spelling of 797619879 in words is "seven hundred ninety-seven million, six hundred nineteen thousand, eight hundred seventy-nine".