3632661 has 16 divisors (see below), whose sum is σ = 5449920. Its totient is φ = 2391120.

The previous prime is 3632653. The next prime is 3632663. The reversal of 3632661 is 1662363.

It is not a de Polignac number, because 3632661 - 2³ = 3632653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3632663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (340620).

Almost surely, 2^3632661 is an apocalyptic number.

It is an amenable number.

3632661 is a deficient number, since it is larger than the sum of its proper divisors (1817259).

3632661 is a wasteful number, since it uses less digits than its factorization.

3632661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1707 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 3632661 is about 1905.9540917871. The cubic root of 3632661 is about 153.7239813200.

The spelling of 3632661 in words is "three million, six hundred thirty-two thousand, six hundred sixty-one".