385198879 has 16 divisors (see below), whose sum is σ = 422368128. Its totient is φ = 349142112.

The previous prime is 385198873. The next prime is 385198883. The reversal of 385198879 is 978891583.

It is a cyclic number.

It is not a de Polignac number, because 385198879 - 2²³ = 376810271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385198873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406284 + ... + 407230.

It is an arithmetic number, because the mean of its divisors is an integer number (26398008).

Almost surely, 2^385198879 is an apocalyptic number.

385198879 is a deficient number, since it is larger than the sum of its proper divisors (37169249).

385198879 is a wasteful number, since it uses less digits than its factorization.

385198879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 4354560, while the sum is 58.

The square root of 385198879 is about 19626.4841222263. The cubic root of 385198879 is about 727.6038775788.

The spelling of 385198879 in words is "three hundred eighty-five million, one hundred ninety-eight thousand, eight hundred seventy-nine".