461975287 has 2 divisors, whose sum is σ = 461975288. Its totient is φ = 461975286.

The previous prime is 461975279. The next prime is 461975321. The reversal of 461975287 is 782579164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461975287 - 2³ = 461975279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461975287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461975587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230987643 + 230987644.

It is an arithmetic number, because the mean of its divisors is an integer number (230987644).

Almost surely, 2^461975287 is an apocalyptic number.

461975287 is a deficient number, since it is larger than the sum of its proper divisors (1).

461975287 is an equidigital number, since it uses as much as digits as its factorization.

461975287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 49.

The square root of 461975287 is about 21493.6103761095. The cubic root of 461975287 is about 773.0476209751.

The spelling of 461975287 in words is "four hundred sixty-one million, nine hundred seventy-five thousand, two hundred eighty-seven".