85964533 has 2 divisors, whose sum is σ = 85964534. Its totient is φ = 85964532.

The previous prime is 85964513. The next prime is 85964537. The reversal of 85964533 is 33546958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85692049 + 272484 = 9257^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 85964533 - 2¹³ = 85956341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85964533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85964537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42982266 + 42982267.

It is an arithmetic number, because the mean of its divisors is an integer number (42982267).

Almost surely, 2^85964533 is an apocalyptic number.

It is an amenable number.

85964533 is a deficient number, since it is larger than the sum of its proper divisors (1).

85964533 is an equidigital number, since it uses as much as digits as its factorization.

85964533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 85964533 is about 9271.7060458149. The cubic root of 85964533 is about 441.3398090194.

The spelling of 85964533 in words is "eighty-five million, nine hundred sixty-four thousand, five hundred thirty-three".