84104990 has 16 divisors (see below), whose sum is σ = 154910448. Its totient is φ = 32859456.

The previous prime is 84104989. The next prime is 84105029. The reversal of 84104990 is 9940148.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84104990.

It is a congruent number.

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, 97367 + ... + 98226.

It is an arithmetic number, because the mean of its divisors is an integer number (9681903).

Almost surely, 2^84104990 is an apocalyptic number.

84104990 is a deficient number, since it is larger than the sum of its proper divisors (70805458).

84104990 is a wasteful number, since it uses less digits than its factorization.

84104990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195643.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 84104990 is about 9170.8772753756. The cubic root of 84104990 is about 438.1343006078.

The spelling of 84104990 in words is "eighty-four million, one hundred four thousand, nine hundred ninety".