3631220867 has 16 divisors (see below), whose sum is σ = 3806702592. Its totient is φ = 3459684960.

The previous prime is 3631220863. The next prime is 3631220897. The reversal of 3631220867 is 7680221363.

It is a cyclic number.

It is not a de Polignac number, because 3631220867 - 2² = 3631220863 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 3631220867.

It is not an unprimeable number, because it can be changed into a prime (3631220861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787613 + ... + 792209.

It is an arithmetic number, because the mean of its divisors is an integer number (237918912).

Almost surely, 2^3631220867 is an apocalyptic number.

3631220867 is a deficient number, since it is larger than the sum of its proper divisors (175481725).

3631220867 is a wasteful number, since it uses less digits than its factorization.

3631220867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 3631220867 is about 60259.6122373850. The cubic root of 3631220867 is about 1537.0366451089.

The spelling of 3631220867 in words is "three billion, six hundred thirty-one million, two hundred twenty thousand, eight hundred sixty-seven".