9126638 has 4 divisors (see below), whose sum is σ = 13689960. Its totient is φ = 4563318.

The previous prime is 9126613. The next prime is 9126643. The reversal of 9126638 is 8366219.

9126638 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 8366219 = 739 ⋅11321.

It is a junction number, because it is equal to n+sod(n) for n = 9126598 and 9126607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2281658 + ... + 2281661.

It is an arithmetic number, because the mean of its divisors is an integer number (3422490).

Almost surely, 2^9126638 is an apocalyptic number.

9126638 is a deficient number, since it is larger than the sum of its proper divisors (4563322).

9126638 is a wasteful number, since it uses less digits than its factorization.

9126638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563321.

The product of its digits is 15552, while the sum is 35.

The square root of 9126638 is about 3021.0326049217. The cubic root of 9126638 is about 208.9794627378.

The spelling of 9126638 in words is "nine million, one hundred twenty-six thousand, six hundred thirty-eight".