8402091 has 8 divisors (see below), whose sum is σ = 11268240. Its totient is φ = 5568672.

The previous prime is 8402077. The next prime is 8402099. The reversal of 8402091 is 1902048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8402091 - 2⁶ = 8402027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8402099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7576 + ... + 8613.

It is an arithmetic number, because the mean of its divisors is an integer number (1408530).

Almost surely, 2^8402091 is an apocalyptic number.

8402091 is a deficient number, since it is larger than the sum of its proper divisors (2866149).

8402091 is a wasteful number, since it uses less digits than its factorization.

8402091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8402091 is about 2898.6360585627. The cubic root of 8402091 is about 203.2961373031.

The spelling of 8402091 in words is "eight million, four hundred two thousand, ninety-one".