79847215 has 48 divisors (see below), whose sum is σ = 124351200. Its totient is φ = 48771072.

The previous prime is 79847197. The next prime is 79847293. The reversal of 79847215 is 51274897.

It is not a de Polignac number, because 79847215 - 2¹⁵ = 79814447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78631 + ... + 79639.

It is an arithmetic number, because the mean of its divisors is an integer number (2590650).

Almost surely, 2^79847215 is an apocalyptic number.

79847215 is a deficient number, since it is larger than the sum of its proper divisors (44503985).

79847215 is a wasteful number, since it uses less digits than its factorization.

79847215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1057 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 79847215 is about 8935.7268870529. The cubic root of 79847215 is about 430.6124587774.

The spelling of 79847215 in words is "seventy-nine million, eight hundred forty-seven thousand, two hundred fifteen".