32631641 has 24 divisors (see below), whose sum is σ = 40470144. Its totient is φ = 25724160.

The previous prime is 32631637. The next prime is 32631647. The reversal of 32631641 is 14613623.

It is not a de Polignac number, because 32631641 - 2² = 32631637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32631641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32631647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135281 + ... + 135521.

It is an arithmetic number, because the mean of its divisors is an integer number (1686256).

Almost surely, 2^32631641 is an apocalyptic number.

It is an amenable number.

32631641 is a deficient number, since it is larger than the sum of its proper divisors (7838503).

32631641 is a wasteful number, since it uses less digits than its factorization.

32631641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 300 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 32631641 is about 5712.4111371644. The cubic root of 32631641 is about 319.5555059109. Note that the first 4 decimals are identical.

The spelling of 32631641 in words is "thirty-two million, six hundred thirty-one thousand, six hundred forty-one".