79968419 has 4 divisors (see below), whose sum is σ = 80065944. Its totient is φ = 79870896.

The previous prime is 79968389. The next prime is 79968431. The reversal of 79968419 is 91486997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79968419 is a prime.

It is a super-2 number, since 2×79968419² = 12789896074719122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79968439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47522 + ... + 49175.

It is an arithmetic number, because the mean of its divisors is an integer number (20016486).

Almost surely, 2^79968419 is an apocalyptic number.

79968419 is a deficient number, since it is larger than the sum of its proper divisors (97525).

79968419 is an equidigital number, since it uses as much as digits as its factorization.

79968419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97524.

The product of its digits is 979776, while the sum is 53.

The square root of 79968419 is about 8942.5063041633. The cubic root of 79968419 is about 430.8302312089.

The spelling of 79968419 in words is "seventy-nine million, nine hundred sixty-eight thousand, four hundred nineteen".