86672540 has 48 divisors (see below), whose sum is σ = 187536384. Its totient is φ = 33633600.

The previous prime is 86672539. The next prime is 86672557. The reversal of 86672540 is 4527668.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86672494 and 86672503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94685 + ... + 95595.

It is an arithmetic number, because the mean of its divisors is an integer number (3907008).

Almost surely, 2^86672540 is an apocalyptic number.

It is an amenable number.

86672540 is an abundant number, since it is smaller than the sum of its proper divisors (100863844).

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

86672540 is a wasteful number, since it uses less digits than its factorization.

86672540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 86672540 is about 9309.8088057704. The cubic root of 86672540 is about 442.5481280177.

The spelling of 86672540 in words is "eighty-six million, six hundred seventy-two thousand, five hundred forty".