632651 has 4 divisors (see below), whose sum is σ = 635712. Its totient is φ = 629592.

The previous prime is 632647. The next prime is 632669. The reversal of 632651 is 156236.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 632651 - 2² = 632647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632251) 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 3 ways as a sum of consecutive naturals, for example, 1196 + ... + 1641.

It is an arithmetic number, because the mean of its divisors is an integer number (158928).

2⁶³²⁶⁵¹ is an apocalyptic number.

632651 is a deficient number, since it is larger than the sum of its proper divisors (3061).

632651 is a wasteful number, since it uses less digits than its factorization.

632651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its digits is 1080, while the sum is 23.

The square root of 632651 is about 795.3936132507. The cubic root of 632651 is about 85.8462640106.

Adding to 632651 its reverse (156236), we get a palindrome (788887).

The spelling of 632651 in words is "six hundred thirty-two thousand, six hundred fifty-one".