85969287 has 6 divisors (see below), whose sum is σ = 124177872. Its totient is φ = 57312852.

The previous prime is 85969277. The next prime is 85969307. The reversal of 85969287 is 78296958.

It is a happy number.

It is not a de Polignac number, because 85969287 - 2⁸ = 85969031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85969237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4776063 + ... + 4776080.

It is an arithmetic number, because the mean of its divisors is an integer number (20696312).

Almost surely, 2^85969287 is an apocalyptic number.

85969287 is a deficient number, since it is larger than the sum of its proper divisors (38208585).

85969287 is a wasteful number, since it uses less digits than its factorization.

85969287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9552149 (or 9552146 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 85969287 is about 9271.9624136425. The cubic root of 85969287 is about 441.3479445094.

The spelling of 85969287 in words is "eighty-five million, nine hundred sixty-nine thousand, two hundred eighty-seven".