86867540 has 12 divisors (see below), whose sum is σ = 182421876. Its totient is φ = 34747008.

The previous prime is 86867537. The next prime is 86867567. The reversal of 86867540 is 4576868.

It can be written as a sum of positive squares in 2 ways, for example, as 37136836 + 49730704 = 6094^2 + 7052^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86867491 and 86867500.

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, 2171669 + ... + 2171708.

It is an arithmetic number, because the mean of its divisors is an integer number (15201823).

Almost surely, 2^86867540 is an apocalyptic number.

It is an amenable number.

86867540 is an abundant number, since it is smaller than the sum of its proper divisors (95554336).

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

86867540 is a wasteful number, since it uses less digits than its factorization.

86867540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343386 (or 4343384 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 86867540 is about 9320.2757469938. The cubic root of 86867540 is about 442.8797680329.

The spelling of 86867540 in words is "eighty-six million, eight hundred sixty-seven thousand, five hundred forty".