989311946 has 8 divisors (see below), whose sum is σ = 1695963360. Its totient is φ = 423990828.

The previous prime is 989311927. The next prime is 989311951. The reversal of 989311946 is 649113989.

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

It is a junction number, because it is equal to n+sod(n) for n = 989311894 and 989311903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35332556 + ... + 35332583.

It is an arithmetic number, because the mean of its divisors is an integer number (211995420).

Almost surely, 2^989311946 is an apocalyptic number.

989311946 is a deficient number, since it is larger than the sum of its proper divisors (706651414).

989311946 is a wasteful number, since it uses less digits than its factorization.

989311946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70665148.

The product of its digits is 419904, while the sum is 50.

The square root of 989311946 is about 31453.3296488623. The cubic root of 989311946 is about 996.4245467031.

The spelling of 989311946 in words is "nine hundred eighty-nine million, three hundred eleven thousand, nine hundred forty-six".