989894746 has 16 divisors (see below), whose sum is σ = 1570630464. Its totient is φ = 466941024.

The previous prime is 989894687. The next prime is 989894747. The reversal of 989894746 is 647498989.

It is not an unprimeable number, because it can be changed into a prime (989894747) 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, 144036 + ... + 150751.

It is an arithmetic number, because the mean of its divisors is an integer number (98164404).

Almost surely, 2^989894746 is an apocalyptic number.

989894746 is a deficient number, since it is larger than the sum of its proper divisors (580735718).

989894746 is a wasteful number, since it uses less digits than its factorization.

989894746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294885.

The product of its digits is 31352832, while the sum is 64.

The square root of 989894746 is about 31462.5928047896. The cubic root of 989894746 is about 996.6201716297.

The spelling of 989894746 in words is "nine hundred eighty-nine million, eight hundred ninety-four thousand, seven hundred forty-six".