4620444391 has 2 divisors, whose sum is σ = 4620444392. Its totient is φ = 4620444390.

The previous prime is 4620444379. The next prime is 4620444421. The reversal of 4620444391 is 1934440264.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4620444391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4620444391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4620444791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310222195 + 2310222196.

It is an arithmetic number, because the mean of its divisors is an integer number (2310222196).

Almost surely, 2^4620444391 is an apocalyptic number.

4620444391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4620444391 is an equidigital number, since it uses as much as digits as its factorization.

4620444391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 4620444391 is about 67973.8507883730. The cubic root of 4620444391 is about 1665.5637082818.

The spelling of 4620444391 in words is "four billion, six hundred twenty million, four hundred forty-four thousand, three hundred ninety-one".