2783231 has 8 divisors (see below), whose sum is σ = 3048528. Its totient is φ = 2520000.

The previous prime is 2783227. The next prime is 2783243. The reversal of 2783231 is 1323872.

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 2783231 - 2² = 2783227 is a prime.

It is a super-2 number, since 2×2783231² = 15492749598722, which contains 22 as substring.

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 2783231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2783281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4331 + ... + 4931.

It is an arithmetic number, because the mean of its divisors is an integer number (381066).

2^2783231 is an apocalyptic number.

2783231 is a deficient number, since it is larger than the sum of its proper divisors (265297).

2783231 is a wasteful number, since it uses less digits than its factorization.

2783231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its digits is 2016, while the sum is 26.

The square root of 2783231 is about 1668.3018312044. The cubic root of 2783231 is about 140.6640392682.

The spelling of 2783231 in words is "two million, seven hundred eighty-three thousand, two hundred thirty-one".