4630621 has 4 divisors (see below), whose sum is σ = 4640544. Its totient is φ = 4620700.

The previous prime is 4630607. The next prime is 4630643. The reversal of 4630621 is 1260364.

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 4630621 - 2⁵ = 4630589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4630592 and 4630601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4630601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4225 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (1160136).

Almost surely, 2^4630621 is an apocalyptic number.

It is an amenable number.

4630621 is a deficient number, since it is larger than the sum of its proper divisors (9923).

4630621 is an equidigital number, since it uses as much as digits as its factorization.

4630621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4630621 is about 2151.8877758842. The cubic root of 4630621 is about 166.6785622621.

Adding to 4630621 its reverse (1260364), we get a palindrome (5890985).

The spelling of 4630621 in words is "four million, six hundred thirty thousand, six hundred twenty-one".