9261390 has 16 divisors (see below), whose sum is σ = 22227408. Its totient is φ = 2469696.

The previous prime is 9261361. The next prime is 9261391. The reversal of 9261390 is 931629.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 308713 = 9261390 / (9 + 2 + 6 + 1 + 3 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9261391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154327 + ... + 154386.

It is an arithmetic number, because the mean of its divisors is an integer number (1389213).

Almost surely, 2^9261390 is an apocalyptic number.

9261390 is an abundant number, since it is smaller than the sum of its proper divisors (12966018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9261390 is a wasteful number, since it uses less digits than its factorization.

9261390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308723.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 9261390 is about 3043.2531935414. The cubic root of 9261390 is about 210.0029478044.

The spelling of 9261390 in words is "nine million, two hundred sixty-one thousand, three hundred ninety".