84499020 has 36 divisors (see below), whose sum is σ = 256314240. Its totient is φ = 22533024.

The previous prime is 84499001. The next prime is 84499031. The reversal of 84499020 is 2099448.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234540 + ... + 234899.

It is an arithmetic number, because the mean of its divisors is an integer number (7119840).

Almost surely, 2^84499020 is an apocalyptic number.

It is an amenable number.

84499020 is an abundant number, since it is smaller than the sum of its proper divisors (171815220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84499020 is a wasteful number, since it uses less digits than its factorization.

84499020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469454 (or 469449 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 84499020 is about 9192.3348502978. The cubic root of 84499020 is about 438.8174513387.

The spelling of 84499020 in words is "eighty-four million, four hundred ninety-nine thousand, twenty".