634465 has 16 divisors (see below), whose sum is σ = 842688. Its totient is φ = 455616.

The previous prime is 634441. The next prime is 634471. The reversal of 634465 is 564436.

634465 = 65² + 66² + ... + 129².

634465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 634465 - 2⁹ = 633953 is a prime.

It is a Duffinian number.

Its product of digits (8640) is a multiple of the sum of its prime divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2682 + ... + 2908.

It is an arithmetic number, because the mean of its divisors is an integer number (52668).

2⁶³⁴⁴⁶⁵ is an apocalyptic number.

634465 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

634465 is a deficient number, since it is larger than the sum of its proper divisors (208223).

634465 is a wasteful number, since it uses less digits than its factorization.

634465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its digits is 8640, while the sum is 28.

The square root of 634465 is about 796.5331129338. The cubic root of 634465 is about 85.9282347036.

The spelling of 634465 in words is "six hundred thirty-four thousand, four hundred sixty-five".