79947419 has 8 divisors (see below), whose sum is σ = 83927040. Its totient is φ = 76055400.

The previous prime is 79947407. The next prime is 79947433. The reversal of 79947419 is 91474997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-79947419 is a prime.

It is a super-2 number, since 2×79947419² = 12783179609523122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79947319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20027 + ... + 23684.

It is an arithmetic number, because the mean of its divisors is an integer number (10490880).

Almost surely, 2^79947419 is an apocalyptic number.

79947419 is a deficient number, since it is larger than the sum of its proper divisors (3979621).

79947419 is a wasteful number, since it uses less digits than its factorization.

79947419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43801.

The product of its digits is 571536, while the sum is 50.

The square root of 79947419 is about 8941.3320595983. The cubic root of 79947419 is about 430.7925153745.

The spelling of 79947419 in words is "seventy-nine million, nine hundred forty-seven thousand, four hundred nineteen".