632905 has 24 divisors (see below), whose sum is σ = 948672. Its totient is φ = 396864.

The previous prime is 632897. The next prime is 632911. The reversal of 632905 is 509236.

It is not a de Polignac number, because 632905 - 2³ = 632897 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 632905.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5862 + ... + 5968.

It is an arithmetic number, because the mean of its divisors is an integer number (39528).

2⁶³²⁹⁰⁵ is an apocalyptic number.

632905 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

632905 is a deficient number, since it is larger than the sum of its proper divisors (315767).

632905 is a wasteful number, since it uses less digits than its factorization.

632905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 632905 is about 795.5532666013. The cubic root of 632905 is about 85.8577511410.

The spelling of 632905 in words is "six hundred thirty-two thousand, nine hundred five".