2850991 has 8 divisors (see below), whose sum is σ = 3349584. Its totient is φ = 2392320.

The previous prime is 2850989. The next prime is 2850997. The reversal of 2850991 is 1990582.

2850991 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 2850991 - 2¹ = 2850989 is a prime.

It is a Duffinian number.

2850991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2850997) 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, 9826 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (418698).

2^2850991 is an apocalyptic number.

2850991 is a deficient number, since it is larger than the sum of its proper divisors (498593).

2850991 is a wasteful number, since it uses less digits than its factorization.

2850991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19961.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2850991 is about 1688.4877849721. The cubic root of 2850991 is about 141.7964252108.

The spelling of 2850991 in words is "two million, eight hundred fifty thousand, nine hundred ninety-one".