4577621 has 8 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 4226992.

The previous prime is 4577569. The next prime is 4577627. The reversal of 4577621 is 1267754.

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 4577621 - 2¹⁰ = 4576597 is a prime.

It is a super-2 number, since 2×4577621² = 41909228039282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4577627) 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, 2765 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (617760).

Almost surely, 2^4577621 is an apocalyptic number.

It is an amenable number.

4577621 is a deficient number, since it is larger than the sum of its proper divisors (364459).

4577621 is a wasteful number, since it uses less digits than its factorization.

4577621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915.

The product of its digits is 11760, while the sum is 32.

The square root of 4577621 is about 2139.5375668588. The cubic root of 4577621 is about 166.0402113840.

The spelling of 4577621 in words is "four million, five hundred seventy-seven thousand, six hundred twenty-one".