6232781 has 2 divisors, whose sum is σ = 6232782. Its totient is φ = 6232780.

The previous prime is 6232771. The next prime is 6232783. The reversal of 6232781 is 1872326.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3575881 + 2656900 = 1891^2 + 1630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6232781 is a prime.

It is a super-2 number, since 2×6232781² = 77695117987922, which contains 22 as substring.

Together with 6232783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6232783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3116390 + 3116391.

It is an arithmetic number, because the mean of its divisors is an integer number (3116391).

Almost surely, 2^6232781 is an apocalyptic number.

It is an amenable number.

6232781 is a deficient number, since it is larger than the sum of its proper divisors (1).

6232781 is an equidigital number, since it uses as much as digits as its factorization.

6232781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 6232781 is about 2496.5538247753. The cubic root of 6232781 is about 184.0322584431.

The spelling of 6232781 in words is "six million, two hundred thirty-two thousand, seven hundred eighty-one".