4364621 has 2 divisors, whose sum is σ = 4364622. Its totient is φ = 4364620.

The previous prime is 4364593. The next prime is 4364653. The reversal of 4364621 is 1264634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4351396 + 13225 = 2086^2 + 115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4364621 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4364681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2182310 + 2182311.

It is an arithmetic number, because the mean of its divisors is an integer number (2182311).

Almost surely, 2^4364621 is an apocalyptic number.

It is an amenable number.

4364621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4364621 is an equidigital number, since it uses as much as digits as its factorization.

4364621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 4364621 is about 2089.1675375613. The cubic root of 4364621 is about 163.4238782523.

The spelling of 4364621 in words is "four million, three hundred sixty-four thousand, six hundred twenty-one".