87042578 has 16 divisors (see below), whose sum is σ = 152687040. Its totient is φ = 36436176.

The previous prime is 87042551. The next prime is 87042583. The reversal of 87042578 is 87524078.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71693 + ... + 72896.

It is an arithmetic number, because the mean of its divisors is an integer number (9542940).

Almost surely, 2^87042578 is an apocalyptic number.

87042578 is a deficient number, since it is larger than the sum of its proper divisors (65644462).

87042578 is a wasteful number, since it uses less digits than its factorization.

87042578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144641.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 87042578 is about 9329.6611942771. The cubic root of 87042578 is about 443.1770358768.

The spelling of 87042578 in words is "eighty-seven million, forty-two thousand, five hundred seventy-eight".