47290687 has 2 divisors, whose sum is σ = 47290688. Its totient is φ = 47290686.

The previous prime is 47290679. The next prime is 47290697. The reversal of 47290687 is 78609274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47290687 - 2³ = 47290679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47290627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23645343 + 23645344.

It is an arithmetic number, because the mean of its divisors is an integer number (23645344).

Almost surely, 2^47290687 is an apocalyptic number.

47290687 is a deficient number, since it is larger than the sum of its proper divisors (1).

47290687 is an equidigital number, since it uses as much as digits as its factorization.

47290687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 47290687 is about 6876.8224493584. The cubic root of 47290687 is about 361.6250785944.

The spelling of 47290687 in words is "forty-seven million, two hundred ninety thousand, six hundred eighty-seven".