4621439 has 2 divisors, whose sum is σ = 4621440. Its totient is φ = 4621438.

The previous prime is 4621381. The next prime is 4621447. The reversal of 4621439 is 9341264.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4621439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4621499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310719 + 2310720.

It is an arithmetic number, because the mean of its divisors is an integer number (2310720).

Almost surely, 2^4621439 is an apocalyptic number.

4621439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4621439 is an equidigital number, since it uses as much as digits as its factorization.

4621439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 4621439 is about 2149.7532416536. The cubic root of 4621439 is about 166.5683210914.

The spelling of 4621439 in words is "four million, six hundred twenty-one thousand, four hundred thirty-nine".