9097391 has 4 divisors (see below), whose sum is σ = 9169152. Its totient is φ = 9025632.

The previous prime is 9097369. The next prime is 9097427. The reversal of 9097391 is 1937909.

It is a happy number.

9097391 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 semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1937909 = 61 ⋅31769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9097391 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 (9097591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35690 + ... + 35943.

It is an arithmetic number, because the mean of its divisors is an integer number (2292288).

Almost surely, 2^9097391 is an apocalyptic number.

9097391 is a deficient number, since it is larger than the sum of its proper divisors (71761).

9097391 is a wasteful number, since it uses less digits than its factorization.

9097391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71760.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 9097391 is about 3016.1881572608. The cubic root of 9097391 is about 208.7559937084.

The spelling of 9097391 in words is "nine million, ninety-seven thousand, three hundred ninety-one".