461998331 has 4 divisors (see below), whose sum is σ = 465322200. Its totient is φ = 458674464.

The previous prime is 461998289. The next prime is 461998343. The reversal of 461998331 is 133899164.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 461998331 - 2⁶ = 461998267 is a prime.

It is a super-2 number, since 2×461998331² = 426884915693571122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461998351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661726 + ... + 1662003.

It is an arithmetic number, because the mean of its divisors is an integer number (116330550).

Almost surely, 2^461998331 is an apocalyptic number.

461998331 is a deficient number, since it is larger than the sum of its proper divisors (3323869).

461998331 is a wasteful number, since it uses less digits than its factorization.

461998331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323868.

The product of its digits is 139968, while the sum is 44.

The square root of 461998331 is about 21494.1464357159. The cubic root of 461998331 is about 773.0604743418.

The spelling of 461998331 in words is "four hundred sixty-one million, nine hundred ninety-eight thousand, three hundred thirty-one".