898978403 has 4 divisors (see below), whose sum is σ = 900553368. Its totient is φ = 897403440.

The previous prime is 898978397. The next prime is 898978417. The reversal of 898978403 is 304879898.

898978403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304879898 = 2 ⋅152439949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898978403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898978303) 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, 786626 + ... + 787767.

It is an arithmetic number, because the mean of its divisors is an integer number (225138342).

Almost surely, 2^898978403 is an apocalyptic number.

898978403 is a deficient number, since it is larger than the sum of its proper divisors (1574965).

898978403 is a wasteful number, since it uses less digits than its factorization.

898978403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574964.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 898978403 is about 29982.9685488278. The cubic root of 898978403 is about 965.1239347925.

The spelling of 898978403 in words is "eight hundred ninety-eight million, nine hundred seventy-eight thousand, four hundred three".