85668783 has 4 divisors (see below), whose sum is σ = 114225048. Its totient is φ = 57112520.

The previous prime is 85668769. The next prime is 85668787. The reversal of 85668783 is 38786658.

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

It is a cyclic number.

It is not a de Polignac number, because 85668783 - 2¹⁶ = 85603247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85668787) 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, 14278128 + ... + 14278133.

It is an arithmetic number, because the mean of its divisors is an integer number (28556262).

Almost surely, 2^85668783 is an apocalyptic number.

85668783 is a deficient number, since it is larger than the sum of its proper divisors (28556265).

85668783 is a wasteful number, since it uses less digits than its factorization.

85668783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28556264.

The product of its digits is 1935360, while the sum is 51.

The square root of 85668783 is about 9255.7432440620. The cubic root of 85668783 is about 440.8331030675.

The spelling of 85668783 in words is "eighty-five million, six hundred sixty-eight thousand, seven hundred eighty-three".