85306633 has 2 divisors, whose sum is σ = 85306634. Its totient is φ = 85306632.

The previous prime is 85306621. The next prime is 85306679. The reversal of 85306633 is 33660358.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56972304 + 28334329 = 7548^2 + 5323^2 .

It is a cyclic number.

It is not a de Polignac number, because 85306633 - 2²⁵ = 51752201 is a prime.

It is not a weakly prime, because it can be changed into another prime (85306693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42653316 + 42653317.

It is an arithmetic number, because the mean of its divisors is an integer number (42653317).

Almost surely, 2^85306633 is an apocalyptic number.

It is an amenable number.

85306633 is a deficient number, since it is larger than the sum of its proper divisors (1).

85306633 is an equidigital number, since it uses as much as digits as its factorization.

85306633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 85306633 is about 9236.1589960329. The cubic root of 85306633 is about 440.2110437302.

The spelling of 85306633 in words is "eighty-five million, three hundred six thousand, six hundred thirty-three".