85384311 has 4 divisors (see below), whose sum is σ = 113845752. Its totient is φ = 56922872.

The previous prime is 85384307. The next prime is 85384337. The reversal of 85384311 is 11348358.

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 85384311 - 2² = 85384307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85304311) 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, 14230716 + ... + 14230721.

It is an arithmetic number, because the mean of its divisors is an integer number (28461438).

Almost surely, 2^85384311 is an apocalyptic number.

85384311 is a deficient number, since it is larger than the sum of its proper divisors (28461441).

85384311 is a wasteful number, since it uses less digits than its factorization.

85384311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28461440.

The product of its digits is 11520, while the sum is 33.

The square root of 85384311 is about 9240.3631422147. The cubic root of 85384311 is about 440.3446181021.

The spelling of 85384311 in words is "eighty-five million, three hundred eighty-four thousand, three hundred eleven".