79049851 has 2 divisors, whose sum is σ = 79049852. Its totient is φ = 79049850.

The previous prime is 79049843. The next prime is 79049869. The reversal of 79049851 is 15894097.

It is a weak prime.

It is an emirp because it is prime and its reverse (15894097) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79049851 - 2³ = 79049843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79049798 and 79049807.

It is not a weakly prime, because it can be changed into another prime (79049891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39524925 + 39524926.

It is an arithmetic number, because the mean of its divisors is an integer number (39524926).

Almost surely, 2^79049851 is an apocalyptic number.

79049851 is a deficient number, since it is larger than the sum of its proper divisors (1).

79049851 is an equidigital number, since it uses as much as digits as its factorization.

79049851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 79049851 is about 8890.9983129005. The cubic root of 79049851 is about 429.1742780230.

The spelling of 79049851 in words is "seventy-nine million, forty-nine thousand, eight hundred fifty-one".