9926389 has 8 divisors (see below), whose sum is σ = 10861920. Its totient is φ = 8996400.

The previous prime is 9926383. The next prime is 9926393. The reversal of 9926389 is 9836299.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9926389 - 2¹³ = 9918197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9926383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2979 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (1357740).

Almost surely, 2^9926389 is an apocalyptic number.

It is an amenable number.

9926389 is a deficient number, since it is larger than the sum of its proper divisors (935531).

9926389 is a wasteful number, since it uses less digits than its factorization.

9926389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771.

The product of its digits is 209952, while the sum is 46.

The square root of 9926389 is about 3150.6172411132. The cubic root of 9926389 is about 214.9135329242.

It can be divided in two parts, 992 and 6389, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 9926389 in words is "nine million, nine hundred twenty-six thousand, three hundred eighty-nine".