9978832 has 10 divisors (see below), whose sum is σ = 19334018. Its totient is φ = 4989408.

The previous prime is 9978827. The next prime is 9978833. The reversal of 9978832 is 2388799.

It can be written as a sum of positive squares in only one way, i.e., 9960336 + 18496 = 3156^2 + 136^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9978833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311823 + ... + 311854.

Almost surely, 2^9978832 is an apocalyptic number.

It is an amenable number.

9978832 is a deficient number, since it is larger than the sum of its proper divisors (9355186).

9978832 is a wasteful number, since it uses less digits than its factorization.

9978832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623685 (or 623679 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 9978832 is about 3158.9289324073. The cubic root of 9978832 is about 215.2913447020.

The spelling of 9978832 in words is "nine million, nine hundred seventy-eight thousand, eight hundred thirty-two".