461860639 has 2 divisors, whose sum is σ = 461860640. Its totient is φ = 461860638.

The previous prime is 461860627. The next prime is 461860697. The reversal of 461860639 is 936068164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461860639 - 2⁹ = 461860127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 461860595 and 461860604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461860739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230930319 + 230930320.

It is an arithmetic number, because the mean of its divisors is an integer number (230930320).

Almost surely, 2^461860639 is an apocalyptic number.

461860639 is a deficient number, since it is larger than the sum of its proper divisors (1).

461860639 is an equidigital number, since it uses as much as digits as its factorization.

461860639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 461860639 is about 21490.9431854444. The cubic root of 461860639 is about 772.9836668353.

The spelling of 461860639 in words is "four hundred sixty-one million, eight hundred sixty thousand, six hundred thirty-nine".