86473620 has 36 divisors (see below), whose sum is σ = 262303860. Its totient is φ = 23059584.

The previous prime is 86473609. The next prime is 86473649. The reversal of 86473620 is 2637468.

86473620 is a `hidden beast` number, since 8 + 647 + 3 + 6 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26193924 + 60279696 = 5118^2 + 7764^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 240025 + ... + 240384.

Almost surely, 2^86473620 is an apocalyptic number.

It is an amenable number.

86473620 is an abundant number, since it is smaller than the sum of its proper divisors (175830240).

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

86473620 is a wasteful number, since it uses less digits than its factorization.

86473620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480424 (or 480419 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 86473620 is about 9299.1193131393. The cubic root of 86473620 is about 442.2093082636.

The spelling of 86473620 in words is "eighty-six million, four hundred seventy-three thousand, six hundred twenty".