9913974 has 24 divisors (see below), whose sum is σ = 23065848. Its totient is φ = 2832480.

The previous prime is 9913973. The next prime is 9913979. The reversal of 9913974 is 4793199.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913973) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 16567 + ... + 17154.

It is an arithmetic number, because the mean of its divisors is an integer number (961077).

Almost surely, 2^9913974 is an apocalyptic number.

9913974 is an abundant number, since it is smaller than the sum of its proper divisors (13151874).

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

9913974 is a wasteful number, since it uses less digits than its factorization.

9913974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33740 (or 33733 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 9913974 is about 3148.6463758256. The cubic root of 9913974 is about 214.8238976217.

The spelling of 9913974 in words is "nine million, nine hundred thirteen thousand, nine hundred seventy-four".