898430981 has 8 divisors (see below), whose sum is σ = 1027075584. Its totient is φ = 769860720.

The previous prime is 898430969. The next prime is 898430989. The reversal of 898430981 is 189034898.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 898430981 - 2⁶ = 898430917 is a prime.

It is a super-2 number, since 2×898430981² = 1614356455241244722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898430989) 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, 10316 + ... + 43626.

It is an arithmetic number, because the mean of its divisors is an integer number (128384448).

Almost surely, 2^898430981 is an apocalyptic number.

It is an amenable number.

898430981 is a deficient number, since it is larger than the sum of its proper divisors (128644603).

898430981 is a wasteful number, since it uses less digits than its factorization.

898430981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37171.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 898430981 is about 29973.8382760700. The cubic root of 898430981 is about 964.9279948421.

The spelling of 898430981 in words is "eight hundred ninety-eight million, four hundred thirty thousand, nine hundred eighty-one".