79121363 has 4 divisors (see below), whose sum is σ = 79143048. Its totient is φ = 79099680.

The previous prime is 79121359. The next prime is 79121369. The reversal of 79121363 is 36312197.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79121363 - 2² = 79121359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79121369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878 + ... + 13163.

It is an arithmetic number, because the mean of its divisors is an integer number (19785762).

Almost surely, 2^79121363 is an apocalyptic number.

79121363 is a deficient number, since it is larger than the sum of its proper divisors (21685).

79121363 is a wasteful number, since it uses less digits than its factorization.

79121363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21684.

The product of its digits is 6804, while the sum is 32.

The square root of 79121363 is about 8895.0189994176. The cubic root of 79121363 is about 429.3036557105.

The spelling of 79121363 in words is "seventy-nine million, one hundred twenty-one thousand, three hundred sixty-three".