4664621 has 8 divisors (see below), whose sum is σ = 5197080. Its totient is φ = 4156992.

The previous prime is 4664603. The next prime is 4664641. The reversal of 4664621 is 1264664.

4664621 = T₂₈₃ + T₂₈₄ + ... + T₃₆₉.

4664621 = 411² + 412² + ... + 436².

It can be written as a sum of positive squares in 4 ways, for example, as 212521 + 4452100 = 461^2 + 2110^2 .

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 4664621 - 2¹⁰ = 4663597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4664641) 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, 5810 + ... + 6563.

It is an arithmetic number, because the mean of its divisors is an integer number (649635).

Almost surely, 2^4664621 is an apocalyptic number.

It is an amenable number.

4664621 is a deficient number, since it is larger than the sum of its proper divisors (532459).

4664621 is a wasteful number, since it uses less digits than its factorization.

4664621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12415.

The product of its digits is 6912, while the sum is 29.

The square root of 4664621 is about 2159.7733677402. The cubic root of 4664621 is about 167.0855096527.

The spelling of 4664621 in words is "four million, six hundred sixty-four thousand, six hundred twenty-one".