49699931 has 2 divisors, whose sum is σ = 49699932. Its totient is φ = 49699930.

The previous prime is 49699907. The next prime is 49699943. The reversal of 49699931 is 13999694.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49699931 - 2¹⁴ = 49683547 is a prime.

It is a super-2 number, since 2×49699931² = 4940166282809522, 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 49699931.

It is not a weakly prime, because it can be changed into another prime (49699961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24849965 + 24849966.

It is an arithmetic number, because the mean of its divisors is an integer number (24849966).

Almost surely, 2^49699931 is an apocalyptic number.

49699931 is a deficient number, since it is larger than the sum of its proper divisors (1).

49699931 is an equidigital number, since it uses as much as digits as its factorization.

49699931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 50.

The square root of 49699931 is about 7049.8177990640. The cubic root of 49699931 is about 367.6646948731.

The spelling of 49699931 in words is "forty-nine million, six hundred ninety-nine thousand, nine hundred thirty-one".