87844273 has 4 divisors (see below), whose sum is σ = 95830128. Its totient is φ = 79858420.

The previous prime is 87844261. The next prime is 87844283. The reversal of 87844273 is 37244878.

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 a cyclic number.

It is not a de Polignac number, because 87844273 - 2⁹ = 87843761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87844213) 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, 3992911 + ... + 3992932.

It is an arithmetic number, because the mean of its divisors is an integer number (23957532).

Almost surely, 2^87844273 is an apocalyptic number.

It is an amenable number.

87844273 is a deficient number, since it is larger than the sum of its proper divisors (7985855).

87844273 is a wasteful number, since it uses less digits than its factorization.

87844273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985854.

The product of its digits is 301056, while the sum is 43.

The square root of 87844273 is about 9372.5275673108. The cubic root of 87844273 is about 444.5334891424.

The spelling of 87844273 in words is "eighty-seven million, eight hundred forty-four thousand, two hundred seventy-three".