79851379 has 4 divisors (see below), whose sum is σ = 81160480. Its totient is φ = 78542280.

The previous prime is 79851361. The next prime is 79851403. The reversal of 79851379 is 97315897.

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 79851379 - 2⁵ = 79851347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79851479) 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, 654459 + ... + 654580.

It is an arithmetic number, because the mean of its divisors is an integer number (20290120).

Almost surely, 2^79851379 is an apocalyptic number.

79851379 is a deficient number, since it is larger than the sum of its proper divisors (1309101).

79851379 is a wasteful number, since it uses less digits than its factorization.

79851379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309100.

The product of its digits is 476280, while the sum is 49.

The square root of 79851379 is about 8935.9598812886. The cubic root of 79851379 is about 430.6199440692.

The spelling of 79851379 in words is "seventy-nine million, eight hundred fifty-one thousand, three hundred seventy-nine".