2850891 has 8 divisors (see below), whose sum is σ = 3809280. Its totient is φ = 1896552.

The previous prime is 2850871. The next prime is 2850899. The reversal of 2850891 is 1980582.

It is a happy number.

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

It is not a de Polignac number, because 2850891 - 2⁷ = 2850763 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2850899) 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, 1590 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (476160).

2^2850891 is an apocalyptic number.

2850891 is a deficient number, since it is larger than the sum of its proper divisors (958389).

2850891 is a wasteful number, since it uses less digits than its factorization.

2850891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2850891 is about 1688.4581724165. The cubic root of 2850891 is about 141.7947673301.

It can be divided in two parts, 2850 and 891, that added together give a triangular number (3741 = T₈₆).

The spelling of 2850891 in words is "two million, eight hundred fifty thousand, eight hundred ninety-one".