85790687 has 4 divisors (see below), whose sum is σ = 90837216. Its totient is φ = 80744160.

The previous prime is 85790611. The next prime is 85790699. The reversal of 85790687 is 78609758.

It is a happy number.

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 85790687 - 2⁸ = 85790431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85790387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523239 + ... + 2523272.

It is an arithmetic number, because the mean of its divisors is an integer number (22709304).

Almost surely, 2^85790687 is an apocalyptic number.

85790687 is a deficient number, since it is larger than the sum of its proper divisors (5046529).

85790687 is a wasteful number, since it uses less digits than its factorization.

85790687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046528.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 85790687 is about 9262.3262196923. The cubic root of 85790687 is about 441.0421012076.

The spelling of 85790687 in words is "eighty-five million, seven hundred ninety thousand, six hundred eighty-seven".