84330819 has 12 divisors (see below), whose sum is σ = 125740992. Its totient is φ = 54406800.

The previous prime is 84330817. The next prime is 84330833. The reversal of 84330819 is 91803348.

It is not a de Polignac number, because 84330819 - 2¹ = 84330817 is a prime.

It is a super-2 number, since 2×84330819² = 14223374066421522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84330817) by changing a digit.

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, 150852 + ... + 151409.

It is an arithmetic number, because the mean of its divisors is an integer number (10478416).

Almost surely, 2^84330819 is an apocalyptic number.

84330819 is a deficient number, since it is larger than the sum of its proper divisors (41410173).

84330819 is a wasteful number, since it uses less digits than its factorization.

84330819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302298 (or 302295 counting only the distinct ones).

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

The square root of 84330819 is about 9183.1813115064. The cubic root of 84330819 is about 438.5260926829.

The spelling of 84330819 in words is "eighty-four million, three hundred thirty thousand, eight hundred nineteen".