85328665 has 4 divisors (see below), whose sum is σ = 102394404. Its totient is φ = 68262928.

The previous prime is 85328651. The next prime is 85328671. The reversal of 85328665 is 56682358.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50424201 + 34904464 = 7101^2 + 5908^2 .

It is a cyclic number.

It is not a de Polignac number, because 85328665 - 2⁹ = 85328153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8532862 + ... + 8532871.

It is an arithmetic number, because the mean of its divisors is an integer number (25598601).

Almost surely, 2^85328665 is an apocalyptic number.

It is an amenable number.

85328665 is a deficient number, since it is larger than the sum of its proper divisors (17065739).

85328665 is a wasteful number, since it uses less digits than its factorization.

85328665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17065738.

The product of its digits is 345600, while the sum is 43.

The square root of 85328665 is about 9237.3516226243. The cubic root of 85328665 is about 440.2489379890.

The spelling of 85328665 in words is "eighty-five million, three hundred twenty-eight thousand, six hundred sixty-five".