4567621 has 2 divisors, whose sum is σ = 4567622. Its totient is φ = 4567620.

The previous prime is 4567597. The next prime is 4567627. The reversal of 4567621 is 1267654.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4351396 + 216225 = 2086^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 4567621 - 2⁹ = 4567109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4567627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283810 + 2283811.

It is an arithmetic number, because the mean of its divisors is an integer number (2283811).

Almost surely, 2^4567621 is an apocalyptic number.

It is an amenable number.

4567621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4567621 is an equidigital number, since it uses as much as digits as its factorization.

4567621 is an evil number, because the sum of its binary digits is even.

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

The square root of 4567621 is about 2137.1993355792. The cubic root of 4567621 is about 165.9192160274.

The spelling of 4567621 in words is "four million, five hundred sixty-seven thousand, six hundred twenty-one".