3847864379 has 2 divisors, whose sum is σ = 3847864380. Its totient is φ = 3847864378.

The previous prime is 3847864271. The next prime is 3847864409. The reversal of 3847864379 is 9734687483.

3847864379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3847864379 is a prime.

It is not a weakly prime, because it can be changed into another prime (3847863379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923932189 + 1923932190.

It is an arithmetic number, because the mean of its divisors is an integer number (1923932190).

Almost surely, 2^3847864379 is an apocalyptic number.

3847864379 is a deficient number, since it is larger than the sum of its proper divisors (1).

3847864379 is an equidigital number, since it uses as much as digits as its factorization.

3847864379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 59.

The square root of 3847864379 is about 62031.1565183175. The cubic root of 3847864379 is about 1567.0153553788.

The spelling of 3847864379 in words is "three billion, eight hundred forty-seven million, eight hundred sixty-four thousand, three hundred seventy-nine".