898978394 has 16 divisors (see below), whose sum is σ = 1430898048. Its totient is φ = 422127552.

The previous prime is 898978361. The next prime is 898978397. The reversal of 898978394 is 493879898.

898978394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 898978394.

It is not an unprimeable number, because it can be changed into a prime (898978397) 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, 12812 + ... + 44295.

It is an arithmetic number, because the mean of its divisors is an integer number (89431128).

Almost surely, 2^898978394 is an apocalyptic number.

898978394 is a deficient number, since it is larger than the sum of its proper divisors (531919654).

898978394 is a wasteful number, since it uses less digits than its factorization.

898978394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57589.

The product of its digits is 31352832, while the sum is 65.

The square root of 898978394 is about 29982.9683987426. The cubic root of 898978394 is about 965.1239315717.

The spelling of 898978394 in words is "eight hundred ninety-eight million, nine hundred seventy-eight thousand, three hundred ninety-four".