85497666 has 16 divisors (see below), whose sum is σ = 171288000. Its totient is φ = 28450448.

The previous prime is 85497637. The next prime is 85497683. The reversal of 85497666 is 66679458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8301 + ... + 15488.

It is an arithmetic number, because the mean of its divisors is an integer number (10705500).

Almost surely, 2^85497666 is an apocalyptic number.

85497666 is an abundant number, since it is smaller than the sum of its proper divisors (85790334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85497666 is a wasteful number, since it uses less digits than its factorization.

85497666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24393.

The product of its digits is 2177280, while the sum is 51.

The square root of 85497666 is about 9246.4947953265. The cubic root of 85497666 is about 440.5393970217.

The spelling of 85497666 in words is "eighty-five million, four hundred ninety-seven thousand, six hundred sixty-six".