87578678 has 16 divisors (see below), whose sum is σ = 143714304. Its totient is φ = 39696360.

The previous prime is 87578663. The next prime is 87578683. The reversal of 87578678 is 87687578.

It is a congruent number.

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, 2651 + ... + 13497.

It is an arithmetic number, because the mean of its divisors is an integer number (8982144).

Almost surely, 2^87578678 is an apocalyptic number.

87578678 is a deficient number, since it is larger than the sum of its proper divisors (56135626).

87578678 is a wasteful number, since it uses less digits than its factorization.

87578678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227.

The product of its digits is 5268480, while the sum is 56.

The square root of 87578678 is about 9358.3480379819. The cubic root of 87578678 is about 444.0850248391.

Subtracting 87578678 from its reverse (87687578), we obtain a square (108900 = 330²).

The spelling of 87578678 in words is "eighty-seven million, five hundred seventy-eight thousand, six hundred seventy-eight".