85938566 has 8 divisors (see below), whose sum is σ = 147323280. Its totient is φ = 36830808.

The previous prime is 85938563. The next prime is 85938637. The reversal of 85938566 is 66583958.

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

It is a super-2 number, since 2×85938566² = 14770874252272712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85938563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3069221 + ... + 3069248.

It is an arithmetic number, because the mean of its divisors is an integer number (18415410).

Almost surely, 2^85938566 is an apocalyptic number.

85938566 is a deficient number, since it is larger than the sum of its proper divisors (61384714).

85938566 is a wasteful number, since it uses less digits than its factorization.

85938566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138478.

The product of its digits is 1555200, while the sum is 50.

The square root of 85938566 is about 9270.3056044556. The cubic root of 85938566 is about 441.2953665634.

The spelling of 85938566 in words is "eighty-five million, nine hundred thirty-eight thousand, five hundred sixty-six".