379917971 has 2 divisors, whose sum is σ = 379917972. Its totient is φ = 379917970.

The previous prime is 379917929. The next prime is 379917973. The reversal of 379917971 is 179719973.

It is a strong prime.

It is an emirp because it is prime and its reverse (179719973) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-379917971 is a prime.

Together with 379917973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (379917973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189958985 + 189958986.

It is an arithmetic number, because the mean of its divisors is an integer number (189958986).

Almost surely, 2^379917971 is an apocalyptic number.

379917971 is a deficient number, since it is larger than the sum of its proper divisors (1).

379917971 is an equidigital number, since it uses as much as digits as its factorization.

379917971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 750141, while the sum is 53.

The square root of 379917971 is about 19491.4845766042. The cubic root of 379917971 is about 724.2635222707.

The spelling of 379917971 in words is "three hundred seventy-nine million, nine hundred seventeen thousand, nine hundred seventy-one".