3879245947 has 2 divisors, whose sum is σ = 3879245948. Its totient is φ = 3879245946.

The previous prime is 3879245939. The next prime is 3879245969. The reversal of 3879245947 is 7495429783.

It is a weak prime.

It is an emirp because it is prime and its reverse (7495429783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3879245947 - 2³ = 3879245939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3879245891 and 3879245900.

It is not a weakly prime, because it can be changed into another prime (3879245917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939622973 + 1939622974.

It is an arithmetic number, because the mean of its divisors is an integer number (1939622974).

Almost surely, 2^3879245947 is an apocalyptic number.

3879245947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879245947 is an equidigital number, since it uses as much as digits as its factorization.

3879245947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 58.

The square root of 3879245947 is about 62283.5929198051. The cubic root of 3879245947 is about 1571.2638000479.

The spelling of 3879245947 in words is "three billion, eight hundred seventy-nine million, two hundred forty-five thousand, nine hundred forty-seven".