84019798 has 8 divisors (see below), whose sum is σ = 126244008. Its totient is φ = 41938464.

The previous prime is 84019777. The next prime is 84019799. The reversal of 84019798 is 89791048.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84019799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34236 + ... + 36607.

It is an arithmetic number, because the mean of its divisors is an integer number (15780501).

Almost surely, 2^84019798 is an apocalyptic number.

84019798 is a deficient number, since it is larger than the sum of its proper divisors (42224210).

84019798 is a wasteful number, since it uses less digits than its factorization.

84019798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71438.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 84019798 is about 9166.2313957264. The cubic root of 84019798 is about 437.9863183177.

The spelling of 84019798 in words is "eighty-four million, nineteen thousand, seven hundred ninety-eight".