79040419 has 2 divisors, whose sum is σ = 79040420. Its totient is φ = 79040418.

The previous prime is 79040411. The next prime is 79040441. The reversal of 79040419 is 91404097.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79040419 - 2³ = 79040411 is a prime.

It is a super-2 number, since 2×79040419² = 12494775671391122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79040411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39520209 + 39520210.

It is an arithmetic number, because the mean of its divisors is an integer number (39520210).

Almost surely, 2^79040419 is an apocalyptic number.

79040419 is a deficient number, since it is larger than the sum of its proper divisors (1).

79040419 is an equidigital number, since it uses as much as digits as its factorization.

79040419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 79040419 is about 8890.4678729525. The cubic root of 79040419 is about 429.1572080654.

It can be divided in two parts, 790 and 40419, that added together give a square (41209 = 203²).

The spelling of 79040419 in words is "seventy-nine million, forty thousand, four hundred nineteen".