85715745 has 16 divisors (see below), whose sum is σ = 144363840. Its totient is φ = 43308864.

The previous prime is 85715743. The next prime is 85715753. The reversal of 85715745 is 54751758.

It is not a de Polignac number, because 85715745 - 2¹ = 85715743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85715697 and 85715706.

It is not an unprimeable number, because it can be changed into a prime (85715743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150094 + ... + 150663.

It is an arithmetic number, because the mean of its divisors is an integer number (9022740).

Almost surely, 2^85715745 is an apocalyptic number.

It is an amenable number.

85715745 is a deficient number, since it is larger than the sum of its proper divisors (58648095).

85715745 is a wasteful number, since it uses less digits than its factorization.

85715745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300784.

The product of its digits is 196000, while the sum is 42.

The square root of 85715745 is about 9258.2798078261. The cubic root of 85715745 is about 440.9136404649.

The spelling of 85715745 in words is "eighty-five million, seven hundred fifteen thousand, seven hundred forty-five".