3879140249 has 2 divisors, whose sum is σ = 3879140250. Its totient is φ = 3879140248.

The previous prime is 3879140231. The next prime is 3879140299. The reversal of 3879140249 is 9420419783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3874440025 + 4700224 = 62245^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 3879140249 - 2⁸ = 3879139993 is a prime.

It is not a weakly prime, because it can be changed into another prime (3879140219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939570124 + 1939570125.

It is an arithmetic number, because the mean of its divisors is an integer number (1939570125).

Almost surely, 2^3879140249 is an apocalyptic number.

It is an amenable number.

3879140249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879140249 is an equidigital number, since it uses as much as digits as its factorization.

3879140249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 3879140249 is about 62282.7443920064. The cubic root of 3879140249 is about 1571.2495291516.

The spelling of 3879140249 in words is "three billion, eight hundred seventy-nine million, one hundred forty thousand, two hundred forty-nine".