3627921 has 8 divisors (see below), whose sum is σ = 5277024. Its totient is φ = 2198720.

The previous prime is 3627901. The next prime is 3627931. The reversal of 3627921 is 1297263.

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 3627921 - 2⁵ = 3627889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3627901) 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, 54936 + ... + 55001.

It is an arithmetic number, because the mean of its divisors is an integer number (659628).

Almost surely, 2^3627921 is an apocalyptic number.

It is an amenable number.

3627921 is a deficient number, since it is larger than the sum of its proper divisors (1649103).

3627921 is a wasteful number, since it uses less digits than its factorization.

3627921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109951.

The product of its digits is 4536, while the sum is 30.

The square root of 3627921 is about 1904.7102141796. The cubic root of 3627921 is about 153.6570910685.

The spelling of 3627921 in words is "three million, six hundred twenty-seven thousand, nine hundred twenty-one".