385310879 has 2 divisors, whose sum is σ = 385310880. Its totient is φ = 385310878.

The previous prime is 385310857. The next prime is 385310911. The reversal of 385310879 is 978013583.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385310879 - 2²⁴ = 368533663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385310819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192655439 + 192655440.

It is an arithmetic number, because the mean of its divisors is an integer number (192655440).

Almost surely, 2^385310879 is an apocalyptic number.

385310879 is a deficient number, since it is larger than the sum of its proper divisors (1).

385310879 is an equidigital number, since it uses as much as digits as its factorization.

385310879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 385310879 is about 19629.3372022593. The cubic root of 385310879 is about 727.6743898448.

The spelling of 385310879 in words is "three hundred eighty-five million, three hundred ten thousand, eight hundred seventy-nine".