632641 has 4 divisors (see below), whose sum is σ = 634500. Its totient is φ = 630784.

The previous prime is 632629. The next prime is 632647. The reversal of 632641 is 146236.

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 148225 + 484416 = 385^2 + 696^2 .

It is a cyclic number.

It is not a de Polignac number, because 632641 - 2⁵ = 632609 is a prime.

It is a deceptive number, since it divides R₆₃₂₆₄₀.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632647) 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, 256 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (158625).

2⁶³²⁶⁴¹ is an apocalyptic number.

It is an amenable number.

632641 is a deficient number, since it is larger than the sum of its proper divisors (1859).

632641 is a wasteful number, since it uses less digits than its factorization.

632641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858.

The product of its digits is 864, while the sum is 22.

The square root of 632641 is about 795.3873270300. The cubic root of 632641 is about 85.8458116985.

Adding to 632641 its reverse (146236), we get a palindrome (778877).

It can be divided in two parts, 63 and 2641, that added together give a square (2704 = 52²).

The spelling of 632641 in words is "six hundred thirty-two thousand, six hundred forty-one".