79399051 has 2 divisors, whose sum is σ = 79399052. Its totient is φ = 79399050.

The previous prime is 79399049. The next prime is 79399057. The reversal of 79399051 is 15099397.

It is a weak prime.

It is an emirp because it is prime and its reverse (15099397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79399051 - 2¹ = 79399049 is a prime.

Together with 79399049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 79398989 and 79399007.

It is not a weakly prime, because it can be changed into another prime (79399057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39699525 + 39699526.

It is an arithmetic number, because the mean of its divisors is an integer number (39699526).

Almost surely, 2^79399051 is an apocalyptic number.

79399051 is a deficient number, since it is larger than the sum of its proper divisors (1).

79399051 is an equidigital number, since it uses as much as digits as its factorization.

79399051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 79399051 is about 8910.6145130401. The cubic root of 79399051 is about 429.8053039624.

The spelling of 79399051 in words is "seventy-nine million, three hundred ninety-nine thousand, fifty-one".