9115390 has 16 divisors (see below), whose sum is σ = 16496208. Its totient is φ = 3626496.

The previous prime is 9115339. The next prime is 9115399. The reversal of 9115390 is 935119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9115399) 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, 432 + ... + 4291.

It is an arithmetic number, because the mean of its divisors is an integer number (1031013).

Almost surely, 2^9115390 is an apocalyptic number.

9115390 is a deficient number, since it is larger than the sum of its proper divisors (7380818).

9115390 is a wasteful number, since it uses less digits than its factorization.

9115390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 9115390 is about 3019.1704158593. The cubic root of 9115390 is about 208.8935761527.

The spelling of 9115390 in words is "nine million, one hundred fifteen thousand, three hundred ninety".