85872793 has 4 divisors (see below), whose sum is σ = 86078160. Its totient is φ = 85667428.

The previous prime is 85872779. The next prime is 85872803. The reversal of 85872793 is 39727858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39727858 = 2 ⋅19863929.

It is a cyclic number.

It is not a de Polignac number, because 85872793 - 2¹³ = 85864601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85870793) 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, 102055 + ... + 102892.

It is an arithmetic number, because the mean of its divisors is an integer number (21519540).

Almost surely, 2^85872793 is an apocalyptic number.

It is an amenable number.

85872793 is a deficient number, since it is larger than the sum of its proper divisors (205367).

85872793 is a wasteful number, since it uses less digits than its factorization.

85872793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205366.

The product of its digits is 846720, while the sum is 49.

The square root of 85872793 is about 9266.7574156228. The cubic root of 85872793 is about 441.1827561663.

The spelling of 85872793 in words is "eighty-five million, eight hundred seventy-two thousand, seven hundred ninety-three".