4675621 has 4 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 4664044.

The previous prime is 4675613. The next prime is 4675631. The reversal of 4675621 is 1265764.

It is a happy number.

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 4675621 - 2³ = 4675613 is a prime.

It is a super-2 number, since 2×4675621² = 43722863471282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

4675621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4675631) 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, 5161 + ... + 5998.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^4675621 is an apocalyptic number.

It is an amenable number.

4675621 is a deficient number, since it is larger than the sum of its proper divisors (11579).

4675621 is a wasteful number, since it uses less digits than its factorization.

4675621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11578.

The product of its digits is 10080, while the sum is 31.

The square root of 4675621 is about 2162.3184316839. The cubic root of 4675621 is about 167.2167455928.

The spelling of 4675621 in words is "four million, six hundred seventy-five thousand, six hundred twenty-one".