83864786 has 8 divisors (see below), whose sum is σ = 126242544. Its totient is φ = 41783940.

The previous prime is 83864761. The next prime is 83864821. The reversal of 83864786 is 68746838.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73520 + ... + 74651.

It is an arithmetic number, because the mean of its divisors is an integer number (15780318).

Almost surely, 2^83864786 is an apocalyptic number.

83864786 is a deficient number, since it is larger than the sum of its proper divisors (42377758).

83864786 is a wasteful number, since it uses less digits than its factorization.

83864786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148456.

The product of its digits is 1548288, while the sum is 50.

The square root of 83864786 is about 9157.7718905856. The cubic root of 83864786 is about 437.7167987811.

The spelling of 83864786 in words is "eighty-three million, eight hundred sixty-four thousand, seven hundred eighty-six".