87912727 has 4 divisors (see below), whose sum is σ = 100471696. Its totient is φ = 75353760.

The previous prime is 87912709. The next prime is 87912731. The reversal of 87912727 is 72721978.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87912727 - 2¹⁹ = 87388439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87912707) 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, 6279474 + ... + 6279487.

It is an arithmetic number, because the mean of its divisors is an integer number (25117924).

Almost surely, 2^87912727 is an apocalyptic number.

87912727 is a deficient number, since it is larger than the sum of its proper divisors (12558969).

87912727 is a wasteful number, since it uses less digits than its factorization.

87912727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12558968.

The product of its digits is 98784, while the sum is 43.

The square root of 87912727 is about 9376.1786992356. The cubic root of 87912727 is about 444.6489290130.

The spelling of 87912727 in words is "eighty-seven million, nine hundred twelve thousand, seven hundred twenty-seven".