9138829 has 8 divisors (see below), whose sum is σ = 10994240. Its totient is φ = 7420896.

The previous prime is 9138803. The next prime is 9138839. The reversal of 9138829 is 9288319.

9138829 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9138829 - 2¹¹ = 9136781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9138791 and 9138800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138839) 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, 34224 + ... + 34489.

It is an arithmetic number, because the mean of its divisors is an integer number (1374280).

Almost surely, 2^9138829 is an apocalyptic number.

It is an amenable number.

9138829 is a deficient number, since it is larger than the sum of its proper divisors (1855411).

9138829 is a wasteful number, since it uses less digits than its factorization.

9138829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68739.

The product of its digits is 31104, while the sum is 40.

The square root of 9138829 is about 3023.0496191760. The cubic root of 9138829 is about 209.0724701561.

The spelling of 9138829 in words is "nine million, one hundred thirty-eight thousand, eight hundred twenty-nine".