49471931 has 2 divisors, whose sum is σ = 49471932. Its totient is φ = 49471930.

The previous prime is 49471927. The next prime is 49471943. The reversal of 49471931 is 13917494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49471931 - 2² = 49471927 is a prime.

It is a super-2 number, since 2×49471931² = 4894943913737522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49471831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24735965 + 24735966.

It is an arithmetic number, because the mean of its divisors is an integer number (24735966).

Almost surely, 2^49471931 is an apocalyptic number.

49471931 is a deficient number, since it is larger than the sum of its proper divisors (1).

49471931 is an equidigital number, since it uses as much as digits as its factorization.

49471931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 49471931 is about 7033.6285799010. The cubic root of 49471931 is about 367.1016084756.

The spelling of 49471931 in words is "forty-nine million, four hundred seventy-one thousand, nine hundred thirty-one".