49906731 has 16 divisors (see below), whose sum is σ = 76396544. Its totient is φ = 28387584.

The previous prime is 49906697. The next prime is 49906733. The reversal of 49906731 is 13760994.

49906731 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 49906731 - 2¹⁰ = 49905707 is a prime.

It is a super-2 number, since 2×49906731² = 4981363598212722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49906731.

It is not an unprimeable number, because it can be changed into a prime (49906733) by changing a digit.

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, 646 + ... + 10011.

It is an arithmetic number, because the mean of its divisors is an integer number (4774784).

Almost surely, 2^49906731 is an apocalyptic number.

49906731 is a deficient number, since it is larger than the sum of its proper divisors (26489813).

49906731 is a wasteful number, since it uses less digits than its factorization.

49906731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10890.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 49906731 is about 7064.4696191575. The cubic root of 49906731 is about 368.1739366591.

The spelling of 49906731 in words is "forty-nine million, nine hundred six thousand, seven hundred thirty-one".