8374224621 has 16 divisors (see below), whose sum is σ = 13071961728. Its totient is φ = 4668556800.

The previous prime is 8374224619. The next prime is 8374224647. The reversal of 8374224621 is 1264224738.

It is a happy number.

It is not a de Polignac number, because 8374224621 - 2¹ = 8374224619 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8374224621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8374224601) 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, 4862220 + ... + 4863941.

It is an arithmetic number, because the mean of its divisors is an integer number (816997608).

Almost surely, 2^8374224621 is an apocalyptic number.

It is an amenable number.

8374224621 is a deficient number, since it is larger than the sum of its proper divisors (4697737107).

8374224621 is a wasteful number, since it uses less digits than its factorization.

8374224621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726212.

The product of its digits is 129024, while the sum is 39.

The square root of 8374224621 is about 91510.7896425334. The cubic root of 8374224621 is about 2030.7113768637.

The spelling of 8374224621 in words is "eight billion, three hundred seventy-four million, two hundred twenty-four thousand, six hundred twenty-one".