2303891 has 8 divisors (see below), whose sum is σ = 2481840. Its totient is φ = 2130688.

The previous prime is 2303867. The next prime is 2303923. The reversal of 2303891 is 1983032.

2303891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2303891 - 2¹⁴ = 2287507 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2303891.

It is not an unprimeable number, because it can be changed into a prime (2303591) 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 7 ways as a sum of consecutive naturals, for example, 146 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (310230).

2^2303891 is an apocalyptic number.

2303891 is a deficient number, since it is larger than the sum of its proper divisors (177949).

2303891 is a wasteful number, since it uses less digits than its factorization.

2303891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2303891 is about 1517.8573714286. The cubic root of 2303891 is about 132.0750071100.

The spelling of 2303891 in words is "two million, three hundred three thousand, eight hundred ninety-one".