632612643 has 16 divisors (see below), whose sum is σ = 932919456. Its totient is φ = 378777600.

The previous prime is 632612531. The next prime is 632612663. The reversal of 632612643 is 346216236.

It is not a de Polignac number, because 632612643 - 2¹² = 632608547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (632612663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217758 + ... + 220643.

It is an arithmetic number, because the mean of its divisors is an integer number (58307466).

Almost surely, 2^632612643 is an apocalyptic number.

632612643 is a deficient number, since it is larger than the sum of its proper divisors (300306813).

632612643 is a wasteful number, since it uses less digits than its factorization.

632612643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438454.

The product of its digits is 31104, while the sum is 33.

The square root of 632612643 is about 25151.7920435105. The cubic root of 632612643 is about 858.4452905103.

Adding to 632612643 its reverse (346216236), we get a palindrome (978828879).

The spelling of 632612643 in words is "six hundred thirty-two million, six hundred twelve thousand, six hundred forty-three".