84660842 has 16 divisors (see below), whose sum is σ = 145772160. Its totient is φ = 36123408.

The previous prime is 84660809. The next prime is 84660857. The reversal of 84660842 is 24806648.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84660796 and 84660805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9998 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (9110760).

Almost surely, 2^84660842 is an apocalyptic number.

84660842 is a deficient number, since it is larger than the sum of its proper divisors (61111318).

84660842 is a wasteful number, since it uses less digits than its factorization.

84660842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26645.

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

The square root of 84660842 is about 9201.1326476690. The cubic root of 84660842 is about 439.0973955548.

The spelling of 84660842 in words is "eighty-four million, six hundred sixty thousand, eight hundred forty-two".