632405 has 4 divisors (see below), whose sum is σ = 758892. Its totient is φ = 505920.

The previous prime is 632393. The next prime is 632447. The reversal of 632405 is 504236.

632405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167281 + 465124 = 409^2 + 682^2 .

It is not a de Polignac number, because 632405 - 2⁴ = 632389 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63236 + ... + 63245.

It is an arithmetic number, because the mean of its divisors is an integer number (189723).

2⁶³²⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

632405 is a deficient number, since it is larger than the sum of its proper divisors (126487).

632405 is a wasteful number, since it uses less digits than its factorization.

632405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126486.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 632405 is about 795.2389577982. The cubic root of 632405 is about 85.8351357483.

The spelling of 632405 in words is "six hundred thirty-two thousand, four hundred five".