398875849 has 8 divisors (see below), whose sum is σ = 401244480. Its totient is φ = 396514800.

The previous prime is 398875801. The next prime is 398875859. The reversal of 398875849 is 948578893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398875849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398875859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128779 + ... + 131839.

It is an arithmetic number, because the mean of its divisors is an integer number (50155560).

Almost surely, 2^398875849 is an apocalyptic number.

It is an amenable number.

398875849 is a deficient number, since it is larger than the sum of its proper divisors (2368631).

398875849 is a wasteful number, since it uses less digits than its factorization.

398875849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791.

The product of its digits is 17418240, while the sum is 61.

The square root of 398875849 is about 19971.8764516507. The cubic root of 398875849 is about 736.1154174945.

The spelling of 398875849 in words is "three hundred ninety-eight million, eight hundred seventy-five thousand, eight hundred forty-nine".