984990964 has 12 divisors (see below), whose sum is σ = 1725092964. Its totient is φ = 492107264.

The previous prime is 984990947. The next prime is 984990967. The reversal of 984990964 is 469099489.

It can be written as a sum of positive squares in 2 ways, for example, as 210482064 + 774508900 = 14508^2 + 27830^2 .

It is a junction number, because it is equal to n+sod(n) for n = 984990899 and 984990908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984990967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91309 + ... + 101524.

It is an arithmetic number, because the mean of its divisors is an integer number (143757747).

Almost surely, 2^984990964 is an apocalyptic number.

It is an amenable number.

984990964 is a deficient number, since it is larger than the sum of its proper divisors (740102000).

984990964 is a wasteful number, since it uses less digits than its factorization.

984990964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194114 (or 194112 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 984990964 is about 31384.5656971703. The cubic root of 984990964 is about 994.9717470493.

The spelling of 984990964 in words is "nine hundred eighty-four million, nine hundred ninety thousand, nine hundred sixty-four".