7922621 has 8 divisors (see below), whose sum is σ = 9265344. Its totient is φ = 6632640.

The previous prime is 7922591. The next prime is 7922627. The reversal of 7922621 is 1262297.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7922621 - 2¹⁰ = 7921597 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7922627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12860 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (1158168).

Almost surely, 2^7922621 is an apocalyptic number.

It is an amenable number.

7922621 is a deficient number, since it is larger than the sum of its proper divisors (1342723).

7922621 is a wasteful number, since it uses less digits than its factorization.

7922621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26371.

The product of its digits is 3024, while the sum is 29.

The square root of 7922621 is about 2814.7150832722. The cubic root of 7922621 is about 199.3530847595.

The spelling of 7922621 in words is "seven million, nine hundred twenty-two thousand, six hundred twenty-one".