3437621 has 16 divisors (see below), whose sum is σ = 4105728. Its totient is φ = 2841600.

The previous prime is 3437617. The next prime is 3437639. The reversal of 3437621 is 1267343.

3437621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3437621 - 2² = 3437617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3437641) 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, 5501 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (256608).

Almost surely, 2^3437621 is an apocalyptic number.

3437621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3437621 is a deficient number, since it is larger than the sum of its proper divisors (668107).

3437621 is a wasteful number, since it uses less digits than its factorization.

3437621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652.

The product of its digits is 3024, while the sum is 26.

The square root of 3437621 is about 1854.0822527601. The cubic root of 3437621 is about 150.9220391970.

The spelling of 3437621 in words is "three million, four hundred thirty-seven thousand, six hundred twenty-one".