85308742 has 4 divisors (see below), whose sum is σ = 127963116. Its totient is φ = 42654370.

The previous prime is 85308733. The next prime is 85308757. The reversal of 85308742 is 24780358.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21327184 + ... + 21327187.

It is an arithmetic number, because the mean of its divisors is an integer number (31990779).

Almost surely, 2^85308742 is an apocalyptic number.

85308742 is a deficient number, since it is larger than the sum of its proper divisors (42654374).

85308742 is a wasteful number, since it uses less digits than its factorization.

85308742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42654373.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 85308742 is about 9236.2731661639. The cubic root of 85308742 is about 440.2146714178.

The spelling of 85308742 in words is "eighty-five million, three hundred eight thousand, seven hundred forty-two".