87427555 has 8 divisors (see below), whose sum is σ = 105995232. Its totient is φ = 69220608.

The previous prime is 87427541. The next prime is 87427591. The reversal of 87427555 is 55572478.

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

It is a cyclic number.

It is not a de Polignac number, because 87427555 - 2⁷ = 87427427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89647 + ... + 90616.

It is an arithmetic number, because the mean of its divisors is an integer number (13249404).

Almost surely, 2^87427555 is an apocalyptic number.

87427555 is a deficient number, since it is larger than the sum of its proper divisors (18567677).

87427555 is a wasteful number, since it uses less digits than its factorization.

87427555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180365.

The product of its digits is 392000, while the sum is 43.

The square root of 87427555 is about 9350.2703169481. The cubic root of 87427555 is about 443.8294447459.

The spelling of 87427555 in words is "eighty-seven million, four hundred twenty-seven thousand, five hundred fifty-five".