47361931 has 2 divisors, whose sum is σ = 47361932. Its totient is φ = 47361930.

The previous prime is 47361911. The next prime is 47361967. The reversal of 47361931 is 13916374.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47361931 - 2¹³ = 47353739 is a prime.

It is a super-2 number, since 2×47361931² = 4486305016097522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47361911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23680965 + 23680966.

It is an arithmetic number, because the mean of its divisors is an integer number (23680966).

Almost surely, 2^47361931 is an apocalyptic number.

47361931 is a deficient number, since it is larger than the sum of its proper divisors (1).

47361931 is an equidigital number, since it uses as much as digits as its factorization.

47361931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 47361931 is about 6882.0005085731. Note that the first 3 decimals coincide. The cubic root of 47361931 is about 361.8065850164.

The spelling of 47361931 in words is "forty-seven million, three hundred sixty-one thousand, nine hundred thirty-one".