385698391 has 12 divisors (see below), whose sum is σ = 418338000. Its totient is φ = 355442880.

The previous prime is 385698389. The next prime is 385698413. The reversal of 385698391 is 193896583.

It is not a de Polignac number, because 385698391 - 2¹ = 385698389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385698301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127110 + ... + 130108.

It is an arithmetic number, because the mean of its divisors is an integer number (34861500).

Almost surely, 2^385698391 is an apocalyptic number.

385698391 is a deficient number, since it is larger than the sum of its proper divisors (32639609).

385698391 is a wasteful number, since it uses less digits than its factorization.

385698391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786 (or 3773 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The square root of 385698391 is about 19639.2054574517. The cubic root of 385698391 is about 727.9182518752.

The spelling of 385698391 in words is "three hundred eighty-five million, six hundred ninety-eight thousand, three hundred ninety-one".