84998866 has 16 divisors (see below), whose sum is σ = 128887200. Its totient is φ = 42039328.

The previous prime is 84998839. The next prime is 84998887. The reversal of 84998866 is 66889948.

It is a self number, because there is not a number n which added to its sum of digits gives 84998866.

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, 82905 + ... + 83923.

It is an arithmetic number, because the mean of its divisors is an integer number (8055450).

Almost surely, 2^84998866 is an apocalyptic number.

84998866 is a deficient number, since it is larger than the sum of its proper divisors (43888334).

84998866 is a wasteful number, since it uses less digits than its factorization.

84998866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its digits is 5971968, while the sum is 58.

The square root of 84998866 is about 9219.4829573030. The cubic root of 84998866 is about 439.6810119111.

The spelling of 84998866 in words is "eighty-four million, nine hundred ninety-eight thousand, eight hundred sixty-six".