87671855 has 4 divisors (see below), whose sum is σ = 105206232. Its totient is φ = 70137480.

The previous prime is 87671819. The next prime is 87671863. The reversal of 87671855 is 55817678.

It is a happy number.

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

It is not a de Polignac number, because 87671855 - 2¹⁴ = 87655471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8767181 + ... + 8767190.

It is an arithmetic number, because the mean of its divisors is an integer number (26301558).

Almost surely, 2^87671855 is an apocalyptic number.

87671855 is a deficient number, since it is larger than the sum of its proper divisors (17534377).

87671855 is a wasteful number, since it uses less digits than its factorization.

87671855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17534376.

The product of its digits is 470400, while the sum is 47.

The square root of 87671855 is about 9363.3249970296. The cubic root of 87671855 is about 444.2424598277.

The spelling of 87671855 in words is "eighty-seven million, six hundred seventy-one thousand, eight hundred fifty-five".