3752005621 has 32 divisors (see below), whose sum is σ = 4948570368. Its totient is φ = 2760238080.

The previous prime is 3752005619. The next prime is 3752005633. The reversal of 3752005621 is 1265002573.

It is a cyclic number.

It is not a de Polignac number, because 3752005621 - 2¹ = 3752005619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3752005681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113791 + ... + 143011.

It is an arithmetic number, because the mean of its divisors is an integer number (154642824).

Almost surely, 2^3752005621 is an apocalyptic number.

It is an amenable number.

3752005621 is a deficient number, since it is larger than the sum of its proper divisors (1196564747).

3752005621 is a wasteful number, since it uses less digits than its factorization.

3752005621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29341.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 3752005621 is about 61253.6172074760. The cubic root of 3752005621 is about 1553.8931783140.

The spelling of 3752005621 in words is "three billion, seven hundred fifty-two million, five thousand, six hundred twenty-one".