989991334 has 8 divisors (see below), whose sum is σ = 1494821808. Its totient is φ = 491717400.

The previous prime is 989991259. The next prime is 989991337. The reversal of 989991334 is 433199989.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989991337) 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, 1638757 + ... + 1639360.

It is an arithmetic number, because the mean of its divisors is an integer number (186852726).

Almost surely, 2^989991334 is an apocalyptic number.

989991334 is a deficient number, since it is larger than the sum of its proper divisors (504830474).

989991334 is a wasteful number, since it uses less digits than its factorization.

989991334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278270.

The product of its digits is 1889568, while the sum is 55.

The square root of 989991334 is about 31464.1277330232. The cubic root of 989991334 is about 996.6525853177.

The spelling of 989991334 in words is "nine hundred eighty-nine million, nine hundred ninety-one thousand, three hundred thirty-four".