9023491 has 2 divisors, whose sum is σ = 9023492. Its totient is φ = 9023490.

The previous prime is 9023489. The next prime is 9023501. The reversal of 9023491 is 1943209.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1943209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9023491 - 2¹ = 9023489 is a prime.

Together with 9023489, it forms a pair of twin primes.

9023491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9023431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4511745 + 4511746.

It is an arithmetic number, because the mean of its divisors is an integer number (4511746).

Almost surely, 2^9023491 is an apocalyptic number.

9023491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9023491 is an equidigital number, since it uses as much as digits as its factorization.

9023491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 9023491 is about 3003.9126152403. The cubic root of 9023491 is about 208.1892000748.

The spelling of 9023491 in words is "nine million, twenty-three thousand, four hundred ninety-one".