3620295621 has 16 divisors (see below), whose sum is σ = 5443454400. Its totient is φ = 2377506384.

The previous prime is 3620295583. The next prime is 3620295667. The reversal of 3620295621 is 1265920263.

3620295621 is a `hidden beast` number, since 3 + 6 + 2 + 0 + 29 + 5 + 621 = 666.

It is not a de Polignac number, because 3620295621 - 2⁹ = 3620295109 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620295691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998826 + ... + 1002443.

It is an arithmetic number, because the mean of its divisors is an integer number (340215900).

Almost surely, 2^3620295621 is an apocalyptic number.

It is an amenable number.

3620295621 is a deficient number, since it is larger than the sum of its proper divisors (1823158779).

3620295621 is a wasteful number, since it uses less digits than its factorization.

3620295621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001345 (or 2001339 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 3620295621 is about 60168.8924694480. The cubic root of 3620295621 is about 1535.4936036664.

The spelling of 3620295621 in words is "three billion, six hundred twenty million, two hundred ninety-five thousand, six hundred twenty-one".