87013678 has 4 divisors (see below), whose sum is σ = 130520520. Its totient is φ = 43506838.

The previous prime is 87013649. The next prime is 87013691. The reversal of 87013678 is 87631078.

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

It is a super-3 number, since 3×87013678³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 87013678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21753418 + ... + 21753421.

It is an arithmetic number, because the mean of its divisors is an integer number (32630130).

Almost surely, 2^87013678 is an apocalyptic number.

87013678 is a deficient number, since it is larger than the sum of its proper divisors (43506842).

87013678 is a wasteful number, since it uses less digits than its factorization.

87013678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43506841.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 87013678 is about 9328.1122420348. The cubic root of 87013678 is about 443.1279823584.

The spelling of 87013678 in words is "eighty-seven million, thirteen thousand, six hundred seventy-eight".