86208644 has 24 divisors (see below), whose sum is σ = 156269568. Its totient is φ = 41569920.

The previous prime is 86208637. The next prime is 86208659. The reversal of 86208644 is 44680268.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86208598 and 86208607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40757 + ... + 42819.

It is an arithmetic number, because the mean of its divisors is an integer number (6511232).

Almost surely, 2^86208644 is an apocalyptic number.

It is an amenable number.

86208644 is a deficient number, since it is larger than the sum of its proper divisors (70060924).

86208644 is a wasteful number, since it uses less digits than its factorization.

86208644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 86208644 is about 9284.8610113453. The cubic root of 86208644 is about 441.7571675151.

The spelling of 86208644 in words is "eighty-six million, two hundred eight thousand, six hundred forty-four".