650838465 has 24 divisors (see below), whose sum is σ = 1131818688. Its totient is φ = 345975840.

The previous prime is 650838457. The next prime is 650838467. The reversal of 650838465 is 564838056.

650838465 is a `hidden beast` number, since 6 + 508 + 3 + 84 + 65 = 666.

It is not a de Polignac number, because 650838465 - 2³ = 650838457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 650838465.

It is not an unprimeable number, because it can be changed into a prime (650838467) 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, 9741 + ... + 37370.

It is an arithmetic number, because the mean of its divisors is an integer number (47159112).

Almost surely, 2^650838465 is an apocalyptic number.

It is an amenable number.

650838465 is a deficient number, since it is larger than the sum of its proper divisors (480980223).

650838465 is a wasteful number, since it uses less digits than its factorization.

650838465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47429 (or 47426 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 650838465 is about 25511.5359200500. The cubic root of 650838465 is about 866.6114125688.

The spelling of 650838465 in words is "six hundred fifty million, eight hundred thirty-eight thousand, four hundred sixty-five".