86845757 has 2 divisors, whose sum is σ = 86845758. Its totient is φ = 86845756.

The previous prime is 86845721. The next prime is 86845763. The reversal of 86845757 is 75754868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45616516 + 41229241 = 6754^2 + 6421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86845757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86845357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43422878 + 43422879.

It is an arithmetic number, because the mean of its divisors is an integer number (43422879).

Almost surely, 2^86845757 is an apocalyptic number.

It is an amenable number.

86845757 is a deficient number, since it is larger than the sum of its proper divisors (1).

86845757 is an equidigital number, since it uses as much as digits as its factorization.

86845757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881600, while the sum is 50.

The square root of 86845757 is about 9319.1070924204. The cubic root of 86845757 is about 442.8427459321.

It can be divided in two parts, 8684 and 5757, that added together give a palindrome (14441).

The spelling of 86845757 in words is "eighty-six million, eight hundred forty-five thousand, seven hundred fifty-seven".