9961974 has 64 divisors (see below), whose sum is σ = 24975360. Its totient is φ = 2916000.

The previous prime is 9961961. The next prime is 9961981. The reversal of 9961974 is 4791699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18144 + ... + 18684.

It is an arithmetic number, because the mean of its divisors is an integer number (390240).

Almost surely, 2^9961974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9961974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12487680).

9961974 is an abundant number, since it is smaller than the sum of its proper divisors (15013386).

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

9961974 is a wasteful number, since it uses less digits than its factorization.

9961974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 588 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 9961974 is about 3156.2594950352. The cubic root of 9961974 is about 215.1700403514.

The spelling of 9961974 in words is "nine million, nine hundred sixty-one thousand, nine hundred seventy-four".