379909847 has 2 divisors, whose sum is σ = 379909848. Its totient is φ = 379909846.

The previous prime is 379909819. The next prime is 379909861. The reversal of 379909847 is 748909973.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 379909847 - 2²⁰ = 378861271 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 379909792 and 379909801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379900847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189954923 + 189954924.

It is an arithmetic number, because the mean of its divisors is an integer number (189954924).

Almost surely, 2^379909847 is an apocalyptic number.

379909847 is a deficient number, since it is larger than the sum of its proper divisors (1).

379909847 is an equidigital number, since it uses as much as digits as its factorization.

379909847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 379909847 is about 19491.2761767925. The cubic root of 379909847 is about 724.2583597890.

The spelling of 379909847 in words is "three hundred seventy-nine million, nine hundred nine thousand, eight hundred forty-seven".