85140707 has 4 divisors (see below), whose sum is σ = 85325856. Its totient is φ = 84955560.

The previous prime is 85140701. The next prime is 85140761. The reversal of 85140707 is 70704158.

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

It is a cyclic number.

It is not a de Polignac number, because 85140707 - 2¹⁰ = 85139683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85140701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91883 + ... + 92804.

It is an arithmetic number, because the mean of its divisors is an integer number (21331464).

Almost surely, 2^85140707 is an apocalyptic number.

85140707 is a deficient number, since it is larger than the sum of its proper divisors (185149).

85140707 is a wasteful number, since it uses less digits than its factorization.

85140707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185148.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 85140707 is about 9227.1722103795. The cubic root of 85140707 is about 439.9254470793.

The spelling of 85140707 in words is "eighty-five million, one hundred forty thousand, seven hundred seven".