85744065 has 32 divisors (see below), whose sum is σ = 150192000. Its totient is φ = 41425920.

The previous prime is 85744037. The next prime is 85744091. The reversal of 85744065 is 56044758.

It is not a de Polignac number, because 85744065 - 2⁵ = 85744033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56841 + ... + 58329.

It is an arithmetic number, because the mean of its divisors is an integer number (4693500).

Almost surely, 2^85744065 is an apocalyptic number.

It is an amenable number.

85744065 is a deficient number, since it is larger than the sum of its proper divisors (64447935).

85744065 is a wasteful number, since it uses less digits than its factorization.

85744065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 85744065 is about 9259.8091233027. The cubic root of 85744065 is about 440.9621935803.

The spelling of 85744065 in words is "eighty-five million, seven hundred forty-four thousand, sixty-five".