87672727 has 4 divisors (see below), whose sum is σ = 87876576. Its totient is φ = 87468880.

The previous prime is 87672709. The next prime is 87672731. The reversal of 87672727 is 72727678.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72727678 = 2 ⋅36363839.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87672727 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87673727) 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, 101278 + ... + 102139.

It is an arithmetic number, because the mean of its divisors is an integer number (21969144).

Almost surely, 2^87672727 is an apocalyptic number.

87672727 is a deficient number, since it is larger than the sum of its proper divisors (203849).

87672727 is a wasteful number, since it uses less digits than its factorization.

87672727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203848.

The product of its digits is 460992, while the sum is 46.

The square root of 87672727 is about 9363.3715615690. The cubic root of 87672727 is about 444.2439326612.

The spelling of 87672727 in words is "eighty-seven million, six hundred seventy-two thousand, seven hundred twenty-seven".