989478124 has 48 divisors (see below), whose sum is σ = 1953504000. Its totient is φ = 436176576.

The previous prime is 989478121. The next prime is 989478131. The reversal of 989478124 is 421874989.

989478124 = 127² + 128² + ... + 1437².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (989478121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57027 + ... + 72325.

It is an arithmetic number, because the mean of its divisors is an integer number (40698000).

Almost surely, 2^989478124 is an apocalyptic number.

It is an amenable number.

989478124 is a deficient number, since it is larger than the sum of its proper divisors (964025876).

989478124 is a wasteful number, since it uses less digits than its factorization.

989478124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382 (or 15380 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 52.

The square root of 989478124 is about 31455.9711978505. The cubic root of 989478124 is about 996.4803344886.

The spelling of 989478124 in words is "nine hundred eighty-nine million, four hundred seventy-eight thousand, one hundred twenty-four".