898023939 has 4 divisors (see below), whose sum is σ = 1197365256. Its totient is φ = 598682624.

The previous prime is 898023901. The next prime is 898023941. The reversal of 898023939 is 939320898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 898023939 - 2⁸ = 898023683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 898023891 and 898023900.

It is not an unprimeable number, because it can be changed into a prime (898023989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149670654 + ... + 149670659.

It is an arithmetic number, because the mean of its divisors is an integer number (299341314).

Almost surely, 2^898023939 is an apocalyptic number.

898023939 is a deficient number, since it is larger than the sum of its proper divisors (299341317).

898023939 is a wasteful number, since it uses less digits than its factorization.

898023939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299341316.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 898023939 is about 29967.0475522698. The cubic root of 898023939 is about 964.7822498120.

The spelling of 898023939 in words is "eight hundred ninety-eight million, twenty-three thousand, nine hundred thirty-nine".