632621 has 12 divisors (see below), whose sum is σ = 736800. Its totient is φ = 538560.

The previous prime is 632609. The next prime is 632623. The reversal of 632621 is 126236.

It is not a de Polignac number, because 632621 - 2⁶ = 632557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 632593 and 632602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3080 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (61400).

2⁶³²⁶²¹ is an apocalyptic number.

It is an amenable number.

632621 is a deficient number, since it is larger than the sum of its proper divisors (104179).

632621 is a wasteful number, since it uses less digits than its factorization.

632621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 227 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 632621 is about 795.3747544397. The cubic root of 632621 is about 85.8449070599.

Adding to 632621 its reverse (126236), we get a palindrome (758857).

The spelling of 632621 in words is "six hundred thirty-two thousand, six hundred twenty-one".