84388670 has 16 divisors (see below), whose sum is σ = 152025120. Its totient is φ = 33727584.

The previous prime is 84388651. The next prime is 84388687. The reversal of 84388670 is 7688348.

It is a happy number.

It is a congruent number.

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, 12884 + ... + 18296.

It is an arithmetic number, because the mean of its divisors is an integer number (9501570).

Almost surely, 2^84388670 is an apocalyptic number.

84388670 is a deficient number, since it is larger than the sum of its proper divisors (67636450).

84388670 is a wasteful number, since it uses less digits than its factorization.

84388670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 84388670 is about 9186.3306058513. The cubic root of 84388670 is about 438.6263461625.

It can be divided in two parts, 84388 and 670, that added together give a palindrome (85058).

The spelling of 84388670 in words is "eighty-four million, three hundred eighty-eight thousand, six hundred seventy".