85374943 has 4 divisors (see below), whose sum is σ = 85445640. Its totient is φ = 85304248.

The previous prime is 85374937. The next prime is 85374953. The reversal of 85374943 is 34947358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34947358 = 2 ⋅17473679.

It is a cyclic number.

It is not a de Polignac number, because 85374943 - 2⁵ = 85374911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85374943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85374953) 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, 33505 + ... + 35962.

It is an arithmetic number, because the mean of its divisors is an integer number (21361410).

Almost surely, 2^85374943 is an apocalyptic number.

85374943 is a deficient number, since it is larger than the sum of its proper divisors (70697).

85374943 is a wasteful number, since it uses less digits than its factorization.

85374943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70696.

The product of its digits is 362880, while the sum is 43.

The square root of 85374943 is about 9239.8562218251. The cubic root of 85374943 is about 440.3285132728.

The spelling of 85374943 in words is "eighty-five million, three hundred seventy-four thousand, nine hundred forty-three".