632881 has 2 divisors, whose sum is σ = 632882. Its totient is φ = 632880.

The previous prime is 632857. The next prime is 632897. The reversal of 632881 is 188236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614656 + 18225 = 784^2 + 135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632881 is a prime.

It is a super-2 number, since 2×632881² = 801076720322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (632851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316440 + 316441.

It is an arithmetic number, because the mean of its divisors is an integer number (316441).

2⁶³²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

632881 is a deficient number, since it is larger than the sum of its proper divisors (1).

632881 is an equidigital number, since it uses as much as digits as its factorization.

632881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 632881 is about 795.5381826160. The cubic root of 632881 is about 85.8566658743.

It can be divided in two parts, 63 and 2881, that multiplied together give a triangular number (181503 = T₆₀₂).

The spelling of 632881 in words is "six hundred thirty-two thousand, eight hundred eighty-one".