1768231 has 2 divisors, whose sum is σ = 1768232. Its totient is φ = 1768230.

The previous prime is 1768229. The next prime is 1768241. The reversal of 1768231 is 1328671.

It is a weak prime.

It is an emirp because it is prime and its reverse (1328671) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1768231 - 2¹ = 1768229 is a prime.

It is a super-2 number, since 2×1768231² = 6253281738722, which contains 22 as substring.

Together with 1768229, it forms a pair of twin primes.

1768231 is a lucky number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1768231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1768241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884115 + 884116.

It is an arithmetic number, because the mean of its divisors is an integer number (884116).

2^1768231 is an apocalyptic number.

1768231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768231 is an equidigital number, since it uses as much as digits as its factorization.

1768231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 1768231 is about 1329.7484724564. The cubic root of 1768231 is about 120.9241379540.

The spelling of 1768231 in words is "one million, seven hundred sixty-eight thousand, two hundred thirty-one".