398111859 has 12 divisors (see below), whose sum is σ = 575825952. Its totient is φ = 265050000.

The previous prime is 398111843. The next prime is 398111867. The reversal of 398111859 is 958111893.

It is not a de Polignac number, because 398111859 - 2⁴ = 398111843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398111869) 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, 22692 + ... + 36209.

It is an arithmetic number, because the mean of its divisors is an integer number (47985496).

Almost surely, 2^398111859 is an apocalyptic number.

398111859 is a deficient number, since it is larger than the sum of its proper divisors (177714093).

398111859 is a wasteful number, since it uses less digits than its factorization.

398111859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59658 (or 59655 counting only the distinct ones).

The product of its digits is 77760, while the sum is 45.

The square root of 398111859 is about 19952.7406388195. The cubic root of 398111859 is about 735.6451422966.

The spelling of 398111859 in words is "three hundred ninety-eight million, one hundred eleven thousand, eight hundred fifty-nine".