461407987 has 2 divisors, whose sum is σ = 461407988. Its totient is φ = 461407986.

The previous prime is 461407949. The next prime is 461407993. The reversal of 461407987 is 789704164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461407987 - 2¹⁵ = 461375219 is a prime.

It is not a weakly prime, because it can be changed into another prime (461407927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230703993 + 230703994.

It is an arithmetic number, because the mean of its divisors is an integer number (230703994).

Almost surely, 2^461407987 is an apocalyptic number.

461407987 is a deficient number, since it is larger than the sum of its proper divisors (1).

461407987 is an equidigital number, since it uses as much as digits as its factorization.

461407987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 461407987 is about 21480.4093769183. The cubic root of 461407987 is about 772.7310603556.

The spelling of 461407987 in words is "four hundred sixty-one million, four hundred seven thousand, nine hundred eighty-seven".