2286991 has 8 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 1950648.

The previous prime is 2286989. The next prime is 2287009. The reversal of 2286991 is 1996822.

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

It is not a de Polignac number, because 2286991 - 2¹ = 2286989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2286991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2286961) 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, 990 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (328320).

2^2286991 is an apocalyptic number.

2286991 is a deficient number, since it is larger than the sum of its proper divisors (339569).

2286991 is a wasteful number, since it uses less digits than its factorization.

2286991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its digits is 15552, while the sum is 37.

The square root of 2286991 is about 1512.2800666543. The cubic root of 2286991 is about 131.7512725112.

The spelling of 2286991 in words is "two million, two hundred eighty-six thousand, nine hundred ninety-one".