79877963 has 8 divisors (see below), whose sum is σ = 89265456. Its totient is φ = 70844800.

The previous prime is 79877933. The next prime is 79877969. The reversal of 79877963 is 36977897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79877963 - 2¹⁰ = 79876939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79877899 and 79877908.

It is not an unprimeable number, because it can be changed into a prime (79877969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88106 + ... + 89007.

It is an arithmetic number, because the mean of its divisors is an integer number (11158182).

Almost surely, 2^79877963 is an apocalyptic number.

79877963 is a deficient number, since it is larger than the sum of its proper divisors (9387493).

79877963 is a wasteful number, since it uses less digits than its factorization.

79877963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177165.

The product of its digits is 4000752, while the sum is 56.

The square root of 79877963 is about 8937.4472306134. The cubic root of 79877963 is about 430.6677258800.

The spelling of 79877963 in words is "seventy-nine million, eight hundred seventy-seven thousand, nine hundred sixty-three".