4722621 has 16 divisors (see below), whose sum is σ = 6859200. Its totient is φ = 2878848.

The previous prime is 4722587. The next prime is 4722631. The reversal of 4722621 is 1262274.

It is not a de Polignac number, because 4722621 - 2⁷ = 4722493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4722591 and 4722600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4722631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225 + ... + 3081.

It is an arithmetic number, because the mean of its divisors is an integer number (428700).

Almost surely, 2^4722621 is an apocalyptic number.

It is an amenable number.

4722621 is a deficient number, since it is larger than the sum of its proper divisors (2136579).

4722621 is a wasteful number, since it uses less digits than its factorization.

4722621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908.

The product of its digits is 1344, while the sum is 24.

The square root of 4722621 is about 2173.1592210420. The cubic root of 4722621 is about 167.7751740342.

Adding to 4722621 its reverse (1262274), we get a palindrome (5984895).

The spelling of 4722621 in words is "four million, seven hundred twenty-two thousand, six hundred twenty-one".