9869742 has 16 divisors (see below), whose sum is σ = 21932880. Its totient is φ = 3289896.

The previous prime is 9869711. The next prime is 9869777. The reversal of 9869742 is 2479689.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91333 + ... + 91440.

It is an arithmetic number, because the mean of its divisors is an integer number (1370805).

Almost surely, 2^9869742 is an apocalyptic number.

9869742 is an abundant number, since it is smaller than the sum of its proper divisors (12063138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9869742 is a wasteful number, since it uses less digits than its factorization.

9869742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182784 (or 182778 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 9869742 is about 3141.6145530603. The cubic root of 9869742 is about 214.5039365506.

The spelling of 9869742 in words is "nine million, eight hundred sixty-nine thousand, seven hundred forty-two".