85707369 has 16 divisors (see below), whose sum is σ = 138517440. Its totient is φ = 51943680.

The previous prime is 85707317. The next prime is 85707371. The reversal of 85707369 is 96370758.

It is a happy number.

85707369 is a `hidden beast` number, since 8 + 570 + 73 + 6 + 9 = 666.

It is not a de Polignac number, because 85707369 - 2⁷ = 85707241 is a prime.

It is a super-2 number, since 2×85707369² = 14691506201804322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85707569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143992 + ... + 144585.

It is an arithmetic number, because the mean of its divisors is an integer number (8657340).

Almost surely, 2^85707369 is an apocalyptic number.

It is an amenable number.

85707369 is a deficient number, since it is larger than the sum of its proper divisors (52810071).

85707369 is a wasteful number, since it uses less digits than its factorization.

85707369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288597 (or 288591 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 85707369 is about 9257.8274449246. The cubic root of 85707369 is about 440.8992782146.

The spelling of 85707369 in words is "eighty-five million, seven hundred seven thousand, three hundred sixty-nine".