9981274 has 4 divisors (see below), whose sum is σ = 14971914. Its totient is φ = 4990636.

The previous prime is 9981271. The next prime is 9981317. The reversal of 9981274 is 4721899.

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., 6943225 + 3038049 = 2635^2 + 1743^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (9981271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495317 + ... + 2495320.

Almost surely, 2^9981274 is an apocalyptic number.

9981274 is a deficient number, since it is larger than the sum of its proper divisors (4990640).

9981274 is a wasteful number, since it uses less digits than its factorization.

9981274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990639.

The product of its digits is 36288, while the sum is 40.

The square root of 9981274 is about 3159.3154321783. The cubic root of 9981274 is about 215.3089051601.

The spelling of 9981274 in words is "nine million, nine hundred eighty-one thousand, two hundred seventy-four".