85663633 has 16 divisors (see below), whose sum is σ = 96975360. Its totient is φ = 74966400.

The previous prime is 85663631. The next prime is 85663639. The reversal of 85663633 is 33636658.

It is a cyclic number.

It is not a de Polignac number, because 85663633 - 2¹ = 85663631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85663631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77541 + ... + 78637.

It is an arithmetic number, because the mean of its divisors is an integer number (6060960).

Almost surely, 2^85663633 is an apocalyptic number.

It is an amenable number.

85663633 is a deficient number, since it is larger than the sum of its proper divisors (11311727).

85663633 is a wasteful number, since it uses less digits than its factorization.

85663633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its digits is 233280, while the sum is 40.

The square root of 85663633 is about 9255.4650342379. The cubic root of 85663633 is about 440.8242692936.

The spelling of 85663633 in words is "eighty-five million, six hundred sixty-three thousand, six hundred thirty-three".