398848785 has 16 divisors (see below), whose sum is σ = 642819456. Its totient is φ = 211165568.

The previous prime is 398848777. The next prime is 398848787. The reversal of 398848785 is 587848893.

It is a cyclic number.

It is not a de Polignac number, because 398848785 - 2³ = 398848777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398848787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94989 + ... + 99098.

It is an arithmetic number, because the mean of its divisors is an integer number (40176216).

Almost surely, 2^398848785 is an apocalyptic number.

It is an amenable number.

398848785 is a deficient number, since it is larger than the sum of its proper divisors (243970671).

398848785 is a wasteful number, since it uses less digits than its factorization.

398848785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194232.

The product of its digits is 15482880, while the sum is 60.

The square root of 398848785 is about 19971.1988873978. The cubic root of 398848785 is about 736.0987684726.

The spelling of 398848785 in words is "three hundred ninety-eight million, eight hundred forty-eight thousand, seven hundred eighty-five".