87830478 has 12 divisors (see below), whose sum is σ = 190299408. Its totient is φ = 29276820.

The previous prime is 87830453. The next prime is 87830497. The reversal of 87830478 is 87403878.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2439718 + ... + 2439753.

It is an arithmetic number, because the mean of its divisors is an integer number (15858284).

Almost surely, 2^87830478 is an apocalyptic number.

87830478 is an abundant number, since it is smaller than the sum of its proper divisors (102468930).

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

87830478 is a wasteful number, since it uses less digits than its factorization.

87830478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879479 (or 4879476 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 87830478 is about 9371.7916109995. The cubic root of 87830478 is about 444.5102181869.

The spelling of 87830478 in words is "eighty-seven million, eight hundred thirty thousand, four hundred seventy-eight".