83287247 has 2 divisors, whose sum is σ = 83287248. Its totient is φ = 83287246.

The previous prime is 83287223. The next prime is 83287249. The reversal of 83287247 is 74278238.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83287247 - 2⁸ = 83286991 is a prime.

Together with 83287249, 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 (83287249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41643623 + 41643624.

It is an arithmetic number, because the mean of its divisors is an integer number (41643624).

Almost surely, 2^83287247 is an apocalyptic number.

83287247 is a deficient number, since it is larger than the sum of its proper divisors (1).

83287247 is an equidigital number, since it uses as much as digits as its factorization.

83287247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 83287247 is about 9126.1846902197. The cubic root of 83287247 is about 436.7096972791.

Subtracting from 83287247 its reverse (74278238), we obtain a palindrome (9009009).

The spelling of 83287247 in words is "eighty-three million, two hundred eighty-seven thousand, two hundred forty-seven".