3879357409 has 2 divisors, whose sum is σ = 3879357410. Its totient is φ = 3879357408.

The previous prime is 3879357343. The next prime is 3879357421. The reversal of 3879357409 is 9047539783.

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., 2605081600 + 1274275809 = 51040^2 + 35697^2 .

It is a cyclic number.

It is not a de Polignac number, because 3879357409 - 2¹⁹ = 3878833121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3879357409.

It is not a weakly prime, because it can be changed into another prime (3879352409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939678704 + 1939678705.

It is an arithmetic number, because the mean of its divisors is an integer number (1939678705).

Almost surely, 2^3879357409 is an apocalyptic number.

It is an amenable number.

3879357409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879357409 is an equidigital number, since it uses as much as digits as its factorization.

3879357409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The square root of 3879357409 is about 62284.4877076146. The cubic root of 3879357409 is about 1571.2788488942.

The spelling of 3879357409 in words is "three billion, eight hundred seventy-nine million, three hundred fifty-seven thousand, four hundred nine".