3632731 has 4 divisors (see below), whose sum is σ = 3644872. Its totient is φ = 3620592.

The previous prime is 3632729. The next prime is 3632737. The reversal of 3632731 is 1372363.

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 3632731 - 2¹ = 3632729 is a prime.

It is a super-2 number, since 2×3632731² = 26393469036722, which contains 22 as substring.

It is a Duffinian number.

3632731 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3632696 and 3632705.

It is not an unprimeable number, because it can be changed into a prime (3632737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5610 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (911218).

Almost surely, 2^3632731 is an apocalyptic number.

3632731 is a deficient number, since it is larger than the sum of its proper divisors (12141).

3632731 is a wasteful number, since it uses less digits than its factorization.

3632731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12140.

The product of its digits is 2268, while the sum is 25.

The square root of 3632731 is about 1905.9724552050. The cubic root of 3632731 is about 153.7249687146.

The spelling of 3632731 in words is "three million, six hundred thirty-two thousand, seven hundred thirty-one".