85766653 has 8 divisors (see below), whose sum is σ = 98587008. Its totient is φ = 73088304.

The previous prime is 85766621. The next prime is 85766657. The reversal of 85766653 is 35666758.

It is a happy number.

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 85766653 - 2⁵ = 85766621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85766657) 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, 34201 + ... + 36622.

It is an arithmetic number, because the mean of its divisors is an integer number (12323376).

Almost surely, 2^85766653 is an apocalyptic number.

It is an amenable number.

85766653 is a deficient number, since it is larger than the sum of its proper divisors (12820355).

85766653 is a wasteful number, since it uses less digits than its factorization.

85766653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71003.

The product of its digits is 907200, while the sum is 46.

The square root of 85766653 is about 9261.0287225556. The cubic root of 85766653 is about 441.0009118267. Note that the first 3 decimals are identical.

The spelling of 85766653 in words is "eighty-five million, seven hundred sixty-six thousand, six hundred fifty-three".