84049819 has 8 divisors (see below), whose sum is σ = 101707488. Its totient is φ = 67804800.

The previous prime is 84049813. The next prime is 84049841. The reversal of 84049819 is 91894048.

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

It is not a de Polignac number, because 84049819 - 2³ = 84049811 is a prime.

It is a super-2 number, since 2×84049819² = 14128744147865522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84049811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353032 + ... + 353269.

It is an arithmetic number, because the mean of its divisors is an integer number (12713436).

Almost surely, 2^84049819 is an apocalyptic number.

84049819 is a deficient number, since it is larger than the sum of its proper divisors (17657669).

84049819 is a wasteful number, since it uses less digits than its factorization.

84049819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706325.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 84049819 is about 9167.8688363218. The cubic root of 84049819 is about 438.0384775382.

The spelling of 84049819 in words is "eighty-four million, forty-nine thousand, eight hundred nineteen".