1886231 has 2 divisors, whose sum is σ = 1886232. Its totient is φ = 1886230.

The previous prime is 1886197. The next prime is 1886233. The reversal of 1886231 is 1326881.

It is a strong prime.

It is an emirp because it is prime and its reverse (1326881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1886231 - 2¹⁰ = 1885207 is a prime.

It is a super-2 number, since 2×1886231² = 7115734770722, which contains 22 as substring.

Together with 1886233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1886194 and 1886203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1886233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 943115 + 943116.

It is an arithmetic number, because the mean of its divisors is an integer number (943116).

2^1886231 is an apocalyptic number.

1886231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1886231 is an equidigital number, since it uses as much as digits as its factorization.

1886231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 1886231 is about 1373.4012523658. The cubic root of 1886231 is about 123.5563184597.

The spelling of 1886231 in words is "one million, eight hundred eighty-six thousand, two hundred thirty-one".