79956419 has 2 divisors, whose sum is σ = 79956420. Its totient is φ = 79956418.

The previous prime is 79956403. The next prime is 79956431. The reversal of 79956419 is 91465997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79956419 - 2⁴ = 79956403 is a prime.

It is a super-2 number, since 2×79956419² = 12786057878607122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79956469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39978209 + 39978210.

It is an arithmetic number, because the mean of its divisors is an integer number (39978210).

Almost surely, 2^79956419 is an apocalyptic number.

79956419 is a deficient number, since it is larger than the sum of its proper divisors (1).

79956419 is an equidigital number, since it uses as much as digits as its factorization.

79956419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 50.

The square root of 79956419 is about 8941.8353261509. The cubic root of 79956419 is about 430.8086801121.

The spelling of 79956419 in words is "seventy-nine million, nine hundred fifty-six thousand, four hundred nineteen".