86747873 has 2 divisors, whose sum is σ = 86747874. Its totient is φ = 86747872.

The previous prime is 86747867. The next prime is 86747879. The reversal of 86747873 is 37874768.

It is a balanced prime because it is at equal distance from previous prime (86747867) and next prime (86747879).

It can be written as a sum of positive squares in only one way, i.e., 71436304 + 15311569 = 8452^2 + 3913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86747873 is a prime.

It is not a weakly prime, because it can be changed into another prime (86747879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43373936 + 43373937.

It is an arithmetic number, because the mean of its divisors is an integer number (43373937).

Almost surely, 2^86747873 is an apocalyptic number.

It is an amenable number.

86747873 is a deficient number, since it is larger than the sum of its proper divisors (1).

86747873 is an equidigital number, since it uses as much as digits as its factorization.

86747873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 50.

The square root of 86747873 is about 9313.8538210560. The cubic root of 86747873 is about 442.6763071152.

The spelling of 86747873 in words is "eighty-six million, seven hundred forty-seven thousand, eight hundred seventy-three".