87113273 has 4 divisors (see below), whose sum is σ = 93814308. Its totient is φ = 80412240.

The previous prime is 87113263. The next prime is 87113311. The reversal of 87113273 is 37231178.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7689529 + 79423744 = 2773^2 + 8912^2 .

It is a cyclic number.

It is not a de Polignac number, because 87113273 - 2⁶ = 87113209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87113263) 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, 3350498 + ... + 3350523.

It is an arithmetic number, because the mean of its divisors is an integer number (23453577).

Almost surely, 2^87113273 is an apocalyptic number.

It is an amenable number.

87113273 is a deficient number, since it is larger than the sum of its proper divisors (6701035).

87113273 is a wasteful number, since it uses less digits than its factorization.

87113273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701034.

The product of its digits is 7056, while the sum is 32.

The square root of 87113273 is about 9333.4491480910. The cubic root of 87113273 is about 443.2969845388.

The spelling of 87113273 in words is "eighty-seven million, one hundred thirteen thousand, two hundred seventy-three".