86542633 has 2 divisors, whose sum is σ = 86542634. Its totient is φ = 86542632.

The previous prime is 86542619. The next prime is 86542679. The reversal of 86542633 is 33624568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81667369 + 4875264 = 9037^2 + 2208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86542633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86542592 and 86542601.

It is not a weakly prime, because it can be changed into another prime (86542613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43271316 + 43271317.

It is an arithmetic number, because the mean of its divisors is an integer number (43271317).

Almost surely, 2^86542633 is an apocalyptic number.

It is an amenable number.

86542633 is a deficient number, since it is larger than the sum of its proper divisors (1).

86542633 is an equidigital number, since it uses as much as digits as its factorization.

86542633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 37.

The square root of 86542633 is about 9302.8293008095. The cubic root of 86542633 is about 442.3269166777.

The spelling of 86542633 in words is "eighty-six million, five hundred forty-two thousand, six hundred thirty-three".