465031989 has 8 divisors (see below), whose sum is σ = 688936320. Its totient is φ = 310021308.

The previous prime is 465031981. The next prime is 465031993. The reversal of 465031989 is 989130564.

It is a happy number.

It is not a de Polignac number, because 465031989 - 2³ = 465031981 is a prime.

It is a super-2 number, since 2×465031989² = 432509501586592242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465031981) 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 in 7 ways as a sum of consecutive naturals, for example, 8611677 + ... + 8611730.

It is an arithmetic number, because the mean of its divisors is an integer number (86117040).

Almost surely, 2^465031989 is an apocalyptic number.

It is an amenable number.

465031989 is a deficient number, since it is larger than the sum of its proper divisors (223904331).

465031989 is a wasteful number, since it uses less digits than its factorization.

465031989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17223416 (or 17223410 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 465031989 is about 21564.6003672686. The cubic root of 465031989 is about 774.7488545924.

The spelling of 465031989 in words is "four hundred sixty-five million, thirty-one thousand, nine hundred eighty-nine".