8091403 has 4 divisors (see below), whose sum is σ = 8352448. Its totient is φ = 7830360.

The previous prime is 8091367. The next prime is 8091409. The reversal of 8091403 is 3041908.

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

It is a cyclic number.

It is not a de Polignac number, because 8091403 - 2⁹ = 8090891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8091409) 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, 130476 + ... + 130537.

It is an arithmetic number, because the mean of its divisors is an integer number (2088112).

Almost surely, 2^8091403 is an apocalyptic number.

8091403 is a deficient number, since it is larger than the sum of its proper divisors (261045).

8091403 is a wasteful number, since it uses less digits than its factorization.

8091403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261044.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8091403 is about 2844.5391542392. The cubic root of 8091403 is about 200.7588090697.

The spelling of 8091403 in words is "eight million, ninety-one thousand, four hundred three".