85669235 has 4 divisors (see below), whose sum is σ = 102803088. Its totient is φ = 68535384.

The previous prime is 85669231. The next prime is 85669261. The reversal of 85669235 is 53296658.

It is a happy number.

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 85669235 - 2² = 85669231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85669231) 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, 8566919 + ... + 8566928.

It is an arithmetic number, because the mean of its divisors is an integer number (25700772).

Almost surely, 2^85669235 is an apocalyptic number.

85669235 is a deficient number, since it is larger than the sum of its proper divisors (17133853).

85669235 is a wasteful number, since it uses less digits than its factorization.

85669235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17133852.

The product of its digits is 388800, while the sum is 44.

The square root of 85669235 is about 9255.7676613018. The cubic root of 85669235 is about 440.8338783644.

The spelling of 85669235 in words is "eighty-five million, six hundred sixty-nine thousand, two hundred thirty-five".