5434939621 has 2 divisors, whose sum is σ = 5434939622. Its totient is φ = 5434939620.

The previous prime is 5434939613. The next prime is 5434939651. The reversal of 5434939621 is 1269394345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5429626596 + 5313025 = 73686^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 5434939621 - 2³ = 5434939613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5434939651) 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, 2717469810 + 2717469811.

It is an arithmetic number, because the mean of its divisors is an integer number (2717469811).

Almost surely, 2^5434939621 is an apocalyptic number.

It is an amenable number.

5434939621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5434939621 is an equidigital number, since it uses as much as digits as its factorization.

5434939621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 46.

The square root of 5434939621 is about 73722.0429790168. The cubic root of 5434939621 is about 1758.1863657481.

The spelling of 5434939621 in words is "five billion, four hundred thirty-four million, nine hundred thirty-nine thousand, six hundred twenty-one".