49686915 has 16 divisors (see below), whose sum is σ = 79762176. Its totient is φ = 26412000.

The previous prime is 49686883. The next prime is 49686929. The reversal of 49686915 is 51968694.

49686915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49686915 - 2⁵ = 49686883 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 9990.

It is an arithmetic number, because the mean of its divisors is an integer number (4985136).

Almost surely, 2^49686915 is an apocalyptic number.

49686915 is a deficient number, since it is larger than the sum of its proper divisors (30075261).

49686915 is a wasteful number, since it uses less digits than its factorization.

49686915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970.

The product of its digits is 466560, while the sum is 48.

The square root of 49686915 is about 7048.8945941899. The cubic root of 49686915 is about 367.6325959587.

The spelling of 49686915 in words is "forty-nine million, six hundred eighty-six thousand, nine hundred fifteen".