85894433 has 4 divisors (see below), whose sum is σ = 88856340. Its totient is φ = 82932528.

The previous prime is 85894429. The next prime is 85894439. The reversal of 85894433 is 33449858.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73839649 + 12054784 = 8593^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 85894433 - 2² = 85894429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85894439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1480910 + ... + 1480967.

It is an arithmetic number, because the mean of its divisors is an integer number (22214085).

Almost surely, 2^85894433 is an apocalyptic number.

It is an amenable number.

85894433 is a deficient number, since it is larger than the sum of its proper divisors (2961907).

85894433 is a wasteful number, since it uses less digits than its factorization.

85894433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961906.

The product of its digits is 414720, while the sum is 44.

The square root of 85894433 is about 9267.9249565369. The cubic root of 85894433 is about 441.2198125014.

The spelling of 85894433 in words is "eighty-five million, eight hundred ninety-four thousand, four hundred thirty-three".