9097421 has 4 divisors (see below), whose sum is σ = 9106812. Its totient is φ = 9088032.

The previous prime is 9097369. The next prime is 9097427. The reversal of 9097421 is 1247909.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 6817321 = 1510^2 + 2611^2 .

It is a cyclic number.

It is not a de Polignac number, because 9097421 - 2¹⁰ = 9096397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9097427) 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 3 ways as a sum of consecutive naturals, for example, 3050 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (2276703).

Almost surely, 2^9097421 is an apocalyptic number.

It is an amenable number.

9097421 is a deficient number, since it is larger than the sum of its proper divisors (9391).

9097421 is a wasteful number, since it uses less digits than its factorization.

9097421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 9097421 is about 3016.1931304212. The cubic root of 9097421 is about 208.7562231761.

The spelling of 9097421 in words is "nine million, ninety-seven thousand, four hundred twenty-one".