47329531 has 2 divisors, whose sum is σ = 47329532. Its totient is φ = 47329530.

The previous prime is 47329507. The next prime is 47329553. The reversal of 47329531 is 13592374.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47329531 is a prime.

It is a super-2 number, since 2×47329531² = 4480169009359922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47329231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23664765 + 23664766.

It is an arithmetic number, because the mean of its divisors is an integer number (23664766).

Almost surely, 2^47329531 is an apocalyptic number.

47329531 is a deficient number, since it is larger than the sum of its proper divisors (1).

47329531 is an equidigital number, since it uses as much as digits as its factorization.

47329531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 47329531 is about 6879.6461391557. The cubic root of 47329531 is about 361.7240629906.

The spelling of 47329531 in words is "forty-seven million, three hundred twenty-nine thousand, five hundred thirty-one".