86247937 has 2 divisors, whose sum is σ = 86247938. Its totient is φ = 86247936.

The previous prime is 86247899. The next prime is 86247947. The reversal of 86247937 is 73974268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 6395841 = 8936^2 + 2529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86247937 is a prime.

It is not a weakly prime, because it can be changed into another prime (86247947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43123968 + 43123969.

It is an arithmetic number, because the mean of its divisors is an integer number (43123969).

Almost surely, 2^86247937 is an apocalyptic number.

It is an amenable number.

86247937 is a deficient number, since it is larger than the sum of its proper divisors (1).

86247937 is an equidigital number, since it uses as much as digits as its factorization.

86247937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 86247937 is about 9286.9767416528. The cubic root of 86247937 is about 441.8242734226.

It can be divided in two parts, 8624 and 7937, that added together give a palindrome (16561).

The spelling of 86247937 in words is "eighty-six million, two hundred forty-seven thousand, nine hundred thirty-seven".