85939563 has 8 divisors (see below), whose sum is σ = 114955776. Its totient is φ = 57108200.

The previous prime is 85939559. The next prime is 85939571. The reversal of 85939563 is 36593958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85939563 - 2² = 85939559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85939583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45123 + ... + 46988.

It is an arithmetic number, because the mean of its divisors is an integer number (14369472).

Almost surely, 2^85939563 is an apocalyptic number.

85939563 is a deficient number, since it is larger than the sum of its proper divisors (29016213).

85939563 is a wasteful number, since it uses less digits than its factorization.

85939563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92425.

The product of its digits is 874800, while the sum is 48.

The square root of 85939563 is about 9270.3593781471. The cubic root of 85939563 is about 441.2970730917.

The spelling of 85939563 in words is "eighty-five million, nine hundred thirty-nine thousand, five hundred sixty-three".