85989065 has 8 divisors (see below), whose sum is σ = 107673408. Its totient is φ = 65800240.

The previous prime is 85989061. The next prime is 85989067. The reversal of 85989065 is 56098958.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85989065 - 2² = 85989061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85989061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373751 + ... + 373980.

It is an arithmetic number, because the mean of its divisors is an integer number (13459176).

Almost surely, 2^85989065 is an apocalyptic number.

It is an amenable number.

85989065 is a deficient number, since it is larger than the sum of its proper divisors (21684343).

85989065 is a wasteful number, since it uses less digits than its factorization.

85989065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747759.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 85989065 is about 9273.0289010657. The cubic root of 85989065 is about 441.3817872558.

The spelling of 85989065 in words is "eighty-five million, nine hundred eighty-nine thousand, sixty-five".