85087679 has 4 divisors (see below), whose sum is σ = 87387384. Its totient is φ = 82787976.

The previous prime is 85087633. The next prime is 85087733. The reversal of 85087679 is 97678058.

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 85087679 - 2¹⁶ = 85022143 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 (85087609) 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, 1149797 + ... + 1149870.

It is an arithmetic number, because the mean of its divisors is an integer number (21846846).

Almost surely, 2^85087679 is an apocalyptic number.

85087679 is a deficient number, since it is larger than the sum of its proper divisors (2299705).

85087679 is a wasteful number, since it uses less digits than its factorization.

85087679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299704.

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

The square root of 85087679 is about 9224.2982930953. The cubic root of 85087679 is about 439.8340955105.

The spelling of 85087679 in words is "eighty-five million, eighty-seven thousand, six hundred seventy-nine".