3627021 has 4 divisors (see below), whose sum is σ = 4836032. Its totient is φ = 2418012.

The previous prime is 3626989. The next prime is 3627023. The reversal of 3627021 is 1207263.

It is a happy number.

3627021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3627021 - 2⁵ = 3626989 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3627023) 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 3 ways as a sum of consecutive naturals, for example, 604501 + ... + 604506.

It is an arithmetic number, because the mean of its divisors is an integer number (1209008).

Almost surely, 2^3627021 is an apocalyptic number.

It is an amenable number.

3627021 is a deficient number, since it is larger than the sum of its proper divisors (1209011).

3627021 is a wasteful number, since it uses less digits than its factorization.

3627021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209010.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 3627021 is about 1904.4739431140. The cubic root of 3627021 is about 153.6443838073.

The spelling of 3627021 in words is "three million, six hundred twenty-seven thousand, twenty-one".