86930478 has 24 divisors (see below), whose sum is σ = 196539408. Its totient is φ = 27716832.

The previous prime is 86930447. The next prime is 86930489. The reversal of 86930478 is 87403968.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104575 + ... + 105402.

It is an arithmetic number, because the mean of its divisors is an integer number (8189142).

Almost surely, 2^86930478 is an apocalyptic number.

86930478 is an abundant number, since it is smaller than the sum of its proper divisors (109608930).

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

86930478 is a wasteful number, since it uses less digits than its factorization.

86930478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210008 (or 210005 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 86930478 is about 9323.6515378901. The cubic root of 86930478 is about 442.9867018685.

The spelling of 86930478 in words is "eighty-six million, nine hundred thirty thousand, four hundred seventy-eight".