4522621 has 8 divisors (see below), whose sum is σ = 4795904. Its totient is φ = 4257360.

The previous prime is 4522619. The next prime is 4522633. The reversal of 4522621 is 1262254.

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

It is a cyclic number.

It is not a de Polignac number, because 4522621 - 2¹ = 4522619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4522592 and 4522601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4522681) 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, 825 + ... + 3118.

It is an arithmetic number, because the mean of its divisors is an integer number (599488).

Almost surely, 2^4522621 is an apocalyptic number.

It is an amenable number.

4522621 is a deficient number, since it is larger than the sum of its proper divisors (273283).

4522621 is a wasteful number, since it uses less digits than its factorization.

4522621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011.

The product of its digits is 960, while the sum is 22.

The square root of 4522621 is about 2126.6454805632. The cubic root of 4522621 is about 165.3725405448.

Adding to 4522621 its reverse (1262254), we get a palindrome (5784875).

The spelling of 4522621 in words is "four million, five hundred twenty-two thousand, six hundred twenty-one".