85526709 has 4 divisors (see below), whose sum is σ = 114035616. Its totient is φ = 57017804.

The previous prime is 85526681. The next prime is 85526717. The reversal of 85526709 is 90762558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85526709 - 2¹¹ = 85524661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85526729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14254449 + ... + 14254454.

It is an arithmetic number, because the mean of its divisors is an integer number (28508904).

Almost surely, 2^85526709 is an apocalyptic number.

It is an amenable number.

85526709 is a deficient number, since it is larger than the sum of its proper divisors (28508907).

85526709 is a wasteful number, since it uses less digits than its factorization.

85526709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28508906.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 85526709 is about 9248.0651489920. The cubic root of 85526709 is about 440.5892741619.

The spelling of 85526709 in words is "eighty-five million, five hundred twenty-six thousand, seven hundred nine".