86724273 has 4 divisors (see below), whose sum is σ = 115632368. Its totient is φ = 57816180.

The previous prime is 86724251. The next prime is 86724289. The reversal of 86724273 is 37242768.

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.

It is not a de Polignac number, because 86724273 - 2¹⁰ = 86723249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86724203) 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, 14454043 + ... + 14454048.

It is an arithmetic number, because the mean of its divisors is an integer number (28908092).

Almost surely, 2^86724273 is an apocalyptic number.

It is an amenable number.

86724273 is a deficient number, since it is larger than the sum of its proper divisors (28908095).

86724273 is a wasteful number, since it uses less digits than its factorization.

86724273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28908094.

The product of its digits is 112896, while the sum is 39.

The square root of 86724273 is about 9312.5868049646. The cubic root of 86724273 is about 442.6361597010.

The spelling of 86724273 in words is "eighty-six million, seven hundred twenty-four thousand, two hundred seventy-three".