9926431 has 4 divisors (see below), whose sum is σ = 9939832. Its totient is φ = 9913032.

The previous prime is 9926401. The next prime is 9926443. The reversal of 9926431 is 1346299.

9926431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9926431 - 2⁹ = 9925919 is a prime.

It is a super-2 number, since 2×9926431² = 197068064795522, which contains 22 as substring.

It is a Duffinian number.

9926431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9926401) 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, 5520 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (2484958).

Almost surely, 2^9926431 is an apocalyptic number.

9926431 is a deficient number, since it is larger than the sum of its proper divisors (13401).

9926431 is a wasteful number, since it uses less digits than its factorization.

9926431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400.

The product of its digits is 11664, while the sum is 34.

The square root of 9926431 is about 3150.6239064668. The cubic root of 9926431 is about 214.9138360340.

The spelling of 9926431 in words is "nine million, nine hundred twenty-six thousand, four hundred thirty-one".