634375 has 24 divisors (see below), whose sum is σ = 937440. Its totient is φ = 420000.

The previous prime is 634373. The next prime is 634397. The reversal of 634375 is 573436.

634375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 634375 - 2¹ = 634373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634373) 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, 21861 + ... + 21889.

It is an arithmetic number, because the mean of its divisors is an integer number (39060).

634375 is a Friedman number, since it can be written as 7*5^3*(3^6-4), using all its digits and the basic arithmetic operations.

2⁶³⁴³⁷⁵ is an apocalyptic number.

634375 is a deficient number, since it is larger than the sum of its proper divisors (303065).

634375 is an frugal number, since it uses more digits than its factorization.

634375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 41 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 634375 is about 796.4766161037. The cubic root of 634375 is about 85.9241714866.

It can be divided in two parts, 63 and 4375, that multiplied together give a square (275625 = 525²).

The spelling of 634375 in words is "six hundred thirty-four thousand, three hundred seventy-five".