80615913 has 8 divisors (see below), whose sum is σ = 122843328. Its totient is φ = 46066224.

The previous prime is 80615891. The next prime is 80615923. The reversal of 80615913 is 31951608.

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

It is not a de Polignac number, because 80615913 - 2⁶ = 80615849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80615923) 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, 1919406 + ... + 1919447.

It is an arithmetic number, because the mean of its divisors is an integer number (15355416).

Almost surely, 2^80615913 is an apocalyptic number.

It is an amenable number.

80615913 is a deficient number, since it is larger than the sum of its proper divisors (42227415).

80615913 is a wasteful number, since it uses less digits than its factorization.

80615913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838863.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 80615913 is about 8978.6364777732. The cubic root of 80615913 is about 431.9898992409.

The spelling of 80615913 in words is "eighty million, six hundred fifteen thousand, nine hundred thirteen".