475440487 has 2 divisors, whose sum is σ = 475440488. Its totient is φ = 475440486.

The previous prime is 475440457. The next prime is 475440533. The reversal of 475440487 is 784044574.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 475440487 - 2¹⁵ = 475407719 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475440457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237720243 + 237720244.

It is an arithmetic number, because the mean of its divisors is an integer number (237720244).

Almost surely, 2^475440487 is an apocalyptic number.

475440487 is a deficient number, since it is larger than the sum of its proper divisors (1).

475440487 is an equidigital number, since it uses as much as digits as its factorization.

475440487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 501760, while the sum is 43.

The square root of 475440487 is about 21804.5978408225. The cubic root of 475440487 is about 780.4864853615.

The spelling of 475440487 in words is "four hundred seventy-five million, four hundred forty thousand, four hundred eighty-seven".