632861 has 4 divisors (see below), whose sum is σ = 637824. Its totient is φ = 627900.

The previous prime is 632857. The next prime is 632881. The reversal of 632861 is 168236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 632861 - 2² = 632857 is a prime.

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 632861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2285 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (159456).

2⁶³²⁸⁶¹ is an apocalyptic number.

It is an amenable number.

632861 is a deficient number, since it is larger than the sum of its proper divisors (4963).

632861 is a wasteful number, since it uses less digits than its factorization.

632861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962.

The product of its digits is 1728, while the sum is 26.

The square root of 632861 is about 795.5256124098. The cubic root of 632861 is about 85.8557614645.

The spelling of 632861 in words is "six hundred thirty-two thousand, eight hundred sixty-one".