9081399 has 4 divisors (see below), whose sum is σ = 12108536. Its totient is φ = 6054264.

The previous prime is 9081353. The next prime is 9081409. The reversal of 9081399 is 9931809.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9081399 - 2⁸ = 9081143 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 (9081599) 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, 1513564 + ... + 1513569.

It is an arithmetic number, because the mean of its divisors is an integer number (3027134).

Almost surely, 2^9081399 is an apocalyptic number.

9081399 is a deficient number, since it is larger than the sum of its proper divisors (3027137).

9081399 is a wasteful number, since it uses less digits than its factorization.

9081399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027136.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 9081399 is about 3013.5359629512. The cubic root of 9081399 is about 208.6336002320.

The spelling of 9081399 in words is "nine million, eighty-one thousand, three hundred ninety-nine".