82947751 has 2 divisors, whose sum is σ = 82947752. Its totient is φ = 82947750.

The previous prime is 82947737. The next prime is 82947757. The reversal of 82947751 is 15774928.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82947751 - 2¹⁵ = 82914983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82947698 and 82947707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82947757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41473875 + 41473876.

It is an arithmetic number, because the mean of its divisors is an integer number (41473876).

Almost surely, 2^82947751 is an apocalyptic number.

82947751 is a deficient number, since it is larger than the sum of its proper divisors (1).

82947751 is an equidigital number, since it uses as much as digits as its factorization.

82947751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 43.

The square root of 82947751 is about 9107.5655913092. The cubic root of 82947751 is about 436.1155162733.

The spelling of 82947751 in words is "eighty-two million, nine hundred forty-seven thousand, seven hundred fifty-one".