85220633 has 4 divisors (see below), whose sum is σ = 85274640. Its totient is φ = 85166628.

The previous prime is 85220593. The next prime is 85220659. The reversal of 85220633 is 33602258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85220633 - 2¹⁶ = 85155097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85220596 and 85220605.

It is not an unprimeable number, because it can be changed into a prime (85220693) 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, 24563 + ... + 27816.

It is an arithmetic number, because the mean of its divisors is an integer number (21318660).

Almost surely, 2^85220633 is an apocalyptic number.

It is an amenable number.

85220633 is a deficient number, since it is larger than the sum of its proper divisors (54007).

85220633 is a wasteful number, since it uses less digits than its factorization.

85220633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54006.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 85220633 is about 9231.5022071167. The cubic root of 85220633 is about 440.0630643078.

The spelling of 85220633 in words is "eighty-five million, two hundred twenty thousand, six hundred thirty-three".