4622621 has 4 divisors (see below), whose sum is σ = 4642044. Its totient is φ = 4603200.

The previous prime is 4622617. The next prime is 4622647. The reversal of 4622621 is 1262264.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3496900 + 1125721 = 1870^2 + 1061^2 .

It is a cyclic number.

It is not a de Polignac number, because 4622621 - 2² = 4622617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4622671) 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, 9350 + ... + 9831.

It is an arithmetic number, because the mean of its divisors is an integer number (1160511).

Almost surely, 2^4622621 is an apocalyptic number.

It is an amenable number.

4622621 is a deficient number, since it is larger than the sum of its proper divisors (19423).

4622621 is a wasteful number, since it uses less digits than its factorization.

4622621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19422.

The product of its digits is 1152, while the sum is 23.

The square root of 4622621 is about 2150.0281393507. The cubic root of 4622621 is about 166.5825206349.

Adding to 4622621 its reverse (1262264), we get a palindrome (5884885).

The spelling of 4622621 in words is "four million, six hundred twenty-two thousand, six hundred twenty-one".