85003399 has 4 divisors (see below), whose sum is σ = 91542136. Its totient is φ = 78464664.

The previous prime is 85003367. The next prime is 85003421. The reversal of 85003399 is 99330058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99330058 = 2 ⋅49665029.

It is a cyclic number.

It is not a de Polignac number, because 85003399 - 2⁵ = 85003367 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 (85003309) 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, 3269349 + ... + 3269374.

It is an arithmetic number, because the mean of its divisors is an integer number (22885534).

Almost surely, 2^85003399 is an apocalyptic number.

85003399 is a deficient number, since it is larger than the sum of its proper divisors (6538737).

85003399 is a wasteful number, since it uses less digits than its factorization.

85003399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538736.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 85003399 is about 9219.7287921066. The cubic root of 85003399 is about 439.6888278530.

The spelling of 85003399 in words is "eighty-five million, three thousand, three hundred ninety-nine".