85478599 has 4 divisors (see below), whose sum is σ = 85787464. Its totient is φ = 85169736.

The previous prime is 85478531. The next prime is 85478609. The reversal of 85478599 is 99587458.

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 85478599 - 2⁹ = 85478087 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 (85478299) 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, 154017 + ... + 154570.

It is an arithmetic number, because the mean of its divisors is an integer number (21446866).

Almost surely, 2^85478599 is an apocalyptic number.

85478599 is a deficient number, since it is larger than the sum of its proper divisors (308865).

85478599 is a wasteful number, since it uses less digits than its factorization.

85478599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308864.

The product of its digits is 3628800, while the sum is 55.

The square root of 85478599 is about 9245.4636984848. The cubic root of 85478599 is about 440.5066460724.

The spelling of 85478599 in words is "eighty-five million, four hundred seventy-eight thousand, five hundred ninety-nine".