87134727 has 8 divisors (see below), whose sum is σ = 118881664. Its totient is φ = 56738808.

The previous prime is 87134711. The next prime is 87134731. The reversal of 87134727 is 72743178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87134727 - 2⁴ = 87134711 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 (87130727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337603 + ... + 337860.

It is an arithmetic number, because the mean of its divisors is an integer number (14860208).

Almost surely, 2^87134727 is an apocalyptic number.

87134727 is a deficient number, since it is larger than the sum of its proper divisors (31746937).

87134727 is a wasteful number, since it uses less digits than its factorization.

87134727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675509.

The product of its digits is 65856, while the sum is 39.

The square root of 87134727 is about 9334.5983845048. The cubic root of 87134727 is about 443.3333728431. Note that the first 4 decimals are identical.

The spelling of 87134727 in words is "eighty-seven million, one hundred thirty-four thousand, seven hundred twenty-seven".