461489889 has 24 divisors (see below), whose sum is σ = 732436320. Its totient is φ = 257572224.

The previous prime is 461489857. The next prime is 461489893. The reversal of 461489889 is 988984164.

It is not a de Polignac number, because 461489889 - 2⁵ = 461489857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461489849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30184 + ... + 42825.

It is an arithmetic number, because the mean of its divisors is an integer number (30518180).

Almost surely, 2^461489889 is an apocalyptic number.

461489889 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

461489889 is a deficient number, since it is larger than the sum of its proper divisors (270946431).

461489889 is a wasteful number, since it uses less digits than its factorization.

461489889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73069 (or 73062 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 57.

The square root of 461489889 is about 21482.3157271277. The cubic root of 461489889 is about 772.7767787341.

The spelling of 461489889 in words is "four hundred sixty-one million, four hundred eighty-nine thousand, eight hundred eighty-nine".