86474840 has 16 divisors (see below), whose sum is σ = 194568480. Its totient is φ = 34589920.

The previous prime is 86474797. The next prime is 86474867. The reversal of 86474840 is 4847468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080896 + ... + 1080975.

It is an arithmetic number, because the mean of its divisors is an integer number (12160530).

Almost surely, 2^86474840 is an apocalyptic number.

It is an amenable number.

86474840 is an abundant number, since it is smaller than the sum of its proper divisors (108093640).

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

86474840 is a wasteful number, since it uses less digits than its factorization.

86474840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161882 (or 2161878 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 86474840 is about 9299.1849105177. The cubic root of 86474840 is about 442.2113878682.

The spelling of 86474840 in words is "eighty-six million, four hundred seventy-four thousand, eight hundred forty".