79964851 has 2 divisors, whose sum is σ = 79964852. Its totient is φ = 79964850.

The previous prime is 79964837. The next prime is 79964879. The reversal of 79964851 is 15846997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79964851 - 2¹¹ = 79962803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79964795 and 79964804.

It is not a weakly prime, because it can be changed into another prime (79964891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39982425 + 39982426.

It is an arithmetic number, because the mean of its divisors is an integer number (39982426).

Almost surely, 2^79964851 is an apocalyptic number.

79964851 is a deficient number, since it is larger than the sum of its proper divisors (1).

79964851 is an equidigital number, since it uses as much as digits as its factorization.

79964851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 79964851 is about 8942.3068052936. The cubic root of 79964851 is about 430.8238235747.

The spelling of 79964851 in words is "seventy-nine million, nine hundred sixty-four thousand, eight hundred fifty-one".