472057687 has 2 divisors, whose sum is σ = 472057688. Its totient is φ = 472057686.

The previous prime is 472057657. The next prime is 472057753. The reversal of 472057687 is 786750274.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472057687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472057637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236028843 + 236028844.

It is an arithmetic number, because the mean of its divisors is an integer number (236028844).

Almost surely, 2^472057687 is an apocalyptic number.

472057687 is a deficient number, since it is larger than the sum of its proper divisors (1).

472057687 is an equidigital number, since it uses as much as digits as its factorization.

472057687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 472057687 is about 21726.8885715373. Note that the first 3 decimals coincide. The cubic root of 472057687 is about 778.6310015554.

The spelling of 472057687 in words is "four hundred seventy-two million, fifty-seven thousand, six hundred eighty-seven".