79948615 has 4 divisors (see below), whose sum is σ = 95938344. Its totient is φ = 63958888.

The previous prime is 79948579. The next prime is 79948619. The reversal of 79948615 is 51684997.

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

It is a cyclic number.

It is not a de Polignac number, because 79948615 - 2⁹ = 79948103 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79948619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7994857 + ... + 7994866.

It is an arithmetic number, because the mean of its divisors is an integer number (23984586).

Almost surely, 2^79948615 is an apocalyptic number.

79948615 is a deficient number, since it is larger than the sum of its proper divisors (15989729).

79948615 is a wasteful number, since it uses less digits than its factorization.

79948615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15989728.

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

The square root of 79948615 is about 8941.3989397633. The cubic root of 79948615 is about 430.7946635584.

The spelling of 79948615 in words is "seventy-nine million, nine hundred forty-eight thousand, six hundred fifteen".