8687478 has 8 divisors (see below), whose sum is σ = 17374968. Its totient is φ = 2895824.

The previous prime is 8687477. The next prime is 8687479. The reversal of 8687478 is 8747868.

8687478 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8687477) and next prime (8687479).

It is a sphenic number, since it is the product of 3 distinct primes.

8687478 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723951 + ... + 723962.

It is an arithmetic number, because the mean of its divisors is an integer number (2171871).

Almost surely, 2^8687478 is an apocalyptic number.

8687478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8687478 is a wasteful number, since it uses less digits than its factorization.

8687478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447918.

The product of its digits is 602112, while the sum is 48.

The square root of 8687478 is about 2947.4527986042. The cubic root of 8687478 is about 205.5722894366.

The spelling of 8687478 in words is "eight million, six hundred eighty-seven thousand, four hundred seventy-eight".