9971774 has 8 divisors (see below), whose sum is σ = 15322608. Its totient is φ = 4864240.

The previous prime is 9971761. The next prime is 9971779. The reversal of 9971774 is 4771799.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9971779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60722 + ... + 60885.

It is an arithmetic number, because the mean of its divisors is an integer number (1915326).

Almost surely, 2^9971774 is an apocalyptic number.

9971774 is a deficient number, since it is larger than the sum of its proper divisors (5350834).

9971774 is a wasteful number, since it uses less digits than its factorization.

9971774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121650.

The product of its digits is 111132, while the sum is 44.

The square root of 9971774 is about 3157.8115839929. The cubic root of 9971774 is about 215.2405744080.

The spelling of 9971774 in words is "nine million, nine hundred seventy-one thousand, seven hundred seventy-four".