868379 has 2 divisors, whose sum is σ = 868380. Its totient is φ = 868378.

The previous prime is 868369. The next prime is 868381. The reversal of 868379 is 973868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868379 - 2⁸ = 868123 is a prime.

It is a Sophie Germain prime.

Together with 868381, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (868349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434189 + 434190.

It is an arithmetic number, because the mean of its divisors is an integer number (434190).

2⁸⁶⁸³⁷⁹ is an apocalyptic number.

868379 is a deficient number, since it is larger than the sum of its proper divisors (1).

868379 is an equidigital number, since it uses as much as digits as its factorization.

868379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 868379 is about 931.8685529623. The cubic root of 868379 is about 95.4047001216.

The spelling of 868379 in words is "eight hundred sixty-eight thousand, three hundred seventy-nine".