85239745 has 8 divisors (see below), whose sum is σ = 103814784. Its totient is φ = 67173744.

The previous prime is 85239727. The next prime is 85239761. The reversal of 85239745 is 54793258.

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

It is a cyclic number.

It is not a de Polignac number, because 85239745 - 2⁷ = 85239617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126889 + ... + 127558.

It is an arithmetic number, because the mean of its divisors is an integer number (12976848).

Almost surely, 2^85239745 is an apocalyptic number.

It is an amenable number.

85239745 is a deficient number, since it is larger than the sum of its proper divisors (18575039).

85239745 is a wasteful number, since it uses less digits than its factorization.

85239745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254519.

The product of its digits is 302400, while the sum is 43.

The square root of 85239745 is about 9232.5373002225. The cubic root of 85239745 is about 440.0959587542.

The spelling of 85239745 in words is "eighty-five million, two hundred thirty-nine thousand, seven hundred forty-five".