86315773 has 2 divisors, whose sum is σ = 86315774. Its totient is φ = 86315772.

The previous prime is 86315771. The next prime is 86315777. The reversal of 86315773 is 37751368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57123364 + 29192409 = 7558^2 + 5403^2 .

It is a cyclic number.

It is not a de Polignac number, because 86315773 - 2¹ = 86315771 is a prime.

Together with 86315771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86315771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43157886 + 43157887.

It is an arithmetic number, because the mean of its divisors is an integer number (43157887).

Almost surely, 2^86315773 is an apocalyptic number.

It is an amenable number.

86315773 is a deficient number, since it is larger than the sum of its proper divisors (1).

86315773 is an equidigital number, since it uses as much as digits as its factorization.

86315773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 86315773 is about 9290.6282349473. The cubic root of 86315773 is about 441.9400780748.

The spelling of 86315773 in words is "eighty-six million, three hundred fifteen thousand, seven hundred seventy-three".