9774431 has 4 divisors (see below), whose sum is σ = 9781200. Its totient is φ = 9767664.

The previous prime is 9774409. The next prime is 9774451. The reversal of 9774431 is 1344779.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9774431 - 2⁶ = 9774367 is a prime.

It is a super-2 number, since 2×9774431² = 191079002747522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9774391 and 9774400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9774451) 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 3 ways as a sum of consecutive naturals, for example, 251 + ... + 4428.

It is an arithmetic number, because the mean of its divisors is an integer number (2445300).

Almost surely, 2^9774431 is an apocalyptic number.

9774431 is a deficient number, since it is larger than the sum of its proper divisors (6769).

9774431 is a wasteful number, since it uses less digits than its factorization.

9774431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6768.

The product of its digits is 21168, while the sum is 35.

The square root of 9774431 is about 3126.4086425162. The cubic root of 9774431 is about 213.8112217051.

The spelling of 9774431 in words is "nine million, seven hundred seventy-four thousand, four hundred thirty-one".