9420621 has 32 divisors (see below), whose sum is σ = 15360000. Its totient is φ = 5019840.

The previous prime is 9420581. The next prime is 9420623. The reversal of 9420621 is 1260249.

It is not a de Polignac number, because 9420621 - 2¹¹ = 9418573 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9420591 and 9420600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9420623) 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, 18630 + ... + 19128.

It is an arithmetic number, because the mean of its divisors is an integer number (480000).

Almost surely, 2^9420621 is an apocalyptic number.

It is an amenable number.

9420621 is a deficient number, since it is larger than the sum of its proper divisors (5939379).

9420621 is a wasteful number, since it uses less digits than its factorization.

9420621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 9420621 is about 3069.3030153440. The cubic root of 9420621 is about 211.1996418368.

The spelling of 9420621 in words is "nine million, four hundred twenty thousand, six hundred twenty-one".