85607785 has 4 divisors (see below), whose sum is σ = 102729348. Its totient is φ = 68486224.

The previous prime is 85607747. The next prime is 85607791. The reversal of 85607785 is 58770658.

85607785 is nontrivially palindromic in base 14.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31629376 + 53978409 = 5624^2 + 7347^2 .

It is a cyclic number.

It is not a de Polignac number, because 85607785 - 2⁷ = 85607657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8560774 + ... + 8560783.

It is an arithmetic number, because the mean of its divisors is an integer number (25682337).

Almost surely, 2^85607785 is an apocalyptic number.

It is an amenable number.

85607785 is a deficient number, since it is larger than the sum of its proper divisors (17121563).

85607785 is a wasteful number, since it uses less digits than its factorization.

85607785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17121562.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 85607785 is about 9252.4475140365. The cubic root of 85607785 is about 440.7284507026.

The spelling of 85607785 in words is "eighty-five million, six hundred seven thousand, seven hundred eighty-five".