87478527 has 16 divisors (see below), whose sum is σ = 123009920. Its totient is φ = 55144800.

The previous prime is 87478519. The next prime is 87478561. The reversal of 87478527 is 72587478.

It is a happy number.

It is not a de Polignac number, because 87478527 - 2³ = 87478519 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 (87478507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38277 + ... + 40497.

It is an arithmetic number, because the mean of its divisors is an integer number (7688120).

Almost surely, 2^87478527 is an apocalyptic number.

87478527 is a deficient number, since it is larger than the sum of its proper divisors (35531393).

87478527 is a wasteful number, since it uses less digits than its factorization.

87478527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934.

The product of its digits is 878080, while the sum is 48.

The square root of 87478527 is about 9352.9956163787. The cubic root of 87478527 is about 443.9156817809.

It can be divided in two parts, 874 and 78527, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 87478527 in words is "eighty-seven million, four hundred seventy-eight thousand, five hundred twenty-seven".