989625746 has 4 divisors (see below), whose sum is σ = 1484438622. Its totient is φ = 494812872.

The previous prime is 989625727. The next prime is 989625781. The reversal of 989625746 is 647526989.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 988159225 + 1466521 = 31435^2 + 1211^2 .

It is a junction number, because it is equal to n+sod(n) for n = 989625691 and 989625700.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 247406435 + ... + 247406438.

Almost surely, 2^989625746 is an apocalyptic number.

989625746 is a deficient number, since it is larger than the sum of its proper divisors (494812876).

989625746 is a wasteful number, since it uses less digits than its factorization.

989625746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494812875.

The product of its digits is 6531840, while the sum is 56.

The square root of 989625746 is about 31458.3175964641. The cubic root of 989625746 is about 996.5298875818.

The spelling of 989625746 in words is "nine hundred eighty-nine million, six hundred twenty-five thousand, seven hundred forty-six".