3630731 has 8 divisors (see below), whose sum is σ = 3925824. Its totient is φ = 3337920.

The previous prime is 3630709. The next prime is 3630733. The reversal of 3630731 is 1370363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3630731 - 2⁶ = 3630667 is a prime.

It is a super-2 number, since 2×3630731² = 26364415188722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3630697 and 3630706.

It is not an unprimeable number, because it can be changed into a prime (3630733) 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 7 ways as a sum of consecutive naturals, for example, 4391 + ... + 5151.

It is an arithmetic number, because the mean of its divisors is an integer number (490728).

Almost surely, 2^3630731 is an apocalyptic number.

3630731 is a deficient number, since it is larger than the sum of its proper divisors (295093).

3630731 is a wasteful number, since it uses less digits than its factorization.

3630731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 3630731 is about 1905.4477164173. The cubic root of 3630731 is about 153.6967524427.

The spelling of 3630731 in words is "three million, six hundred thirty thousand, seven hundred thirty-one".