931485047 has 2 divisors, whose sum is σ = 931485048. Its totient is φ = 931485046.

The previous prime is 931485043. The next prime is 931485157. The reversal of 931485047 is 740584139.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 931485047 - 2² = 931485043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 931484995 and 931485013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (931485041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465742523 + 465742524.

It is an arithmetic number, because the mean of its divisors is an integer number (465742524).

Almost surely, 2^931485047 is an apocalyptic number.

931485047 is a deficient number, since it is larger than the sum of its proper divisors (1).

931485047 is an equidigital number, since it uses as much as digits as its factorization.

931485047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 931485047 is about 30520.2399564617. The cubic root of 931485047 is about 976.6192849124.

The spelling of 931485047 in words is "nine hundred thirty-one million, four hundred eighty-five thousand, forty-seven".