79478013 has 16 divisors (see below), whose sum is σ = 108147200. Its totient is φ = 51906096.

The previous prime is 79477991. The next prime is 79478023. The reversal of 79478013 is 31087497.

It is not a de Polignac number, because 79478013 - 2¹⁶ = 79412477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79478023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39006 + ... + 40992.

It is an arithmetic number, because the mean of its divisors is an integer number (6759200).

Almost surely, 2^79478013 is an apocalyptic number.

It is an amenable number.

79478013 is a deficient number, since it is larger than the sum of its proper divisors (28669187).

79478013 is a wasteful number, since it uses less digits than its factorization.

79478013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 79478013 is about 8915.0441950671. The cubic root of 79478013 is about 429.9477365721.

The spelling of 79478013 in words is "seventy-nine million, four hundred seventy-eight thousand, thirteen".