4426921 has 4 divisors (see below), whose sum is σ = 4489344. Its totient is φ = 4364500.

The previous prime is 4426913. The next prime is 4426927. The reversal of 4426921 is 1296244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4426921 - 2³ = 4426913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4426921.

It is not an unprimeable number, because it can be changed into a prime (4426927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31105 + ... + 31246.

It is an arithmetic number, because the mean of its divisors is an integer number (1122336).

Almost surely, 2^4426921 is an apocalyptic number.

It is an amenable number.

4426921 is a deficient number, since it is larger than the sum of its proper divisors (62423).

4426921 is an equidigital number, since it uses as much as digits as its factorization.

4426921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62422.

The product of its digits is 3456, while the sum is 28.

The square root of 4426921 is about 2104.0249523235. The cubic root of 4426921 is about 164.1977710252.

The spelling of 4426921 in words is "four million, four hundred twenty-six thousand, nine hundred twenty-one".