84196840 has 64 divisors (see below), whose sum is σ = 233170560. Its totient is φ = 26645760.

The previous prime is 84196789. The next prime is 84196843. The reversal of 84196840 is 4869148.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 84196793 and 84196802.

It is not an unprimeable number, because it can be changed into a prime (84196843) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7926 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (3643290).

Almost surely, 2^84196840 is an apocalyptic number.

It is an amenable number.

84196840 is an abundant number, since it is smaller than the sum of its proper divisors (148973720).

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

84196840 is a wasteful number, since it uses less digits than its factorization.

84196840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23162 (or 23158 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 84196840 is about 9175.8836086777. The cubic root of 84196840 is about 438.2937362327.

The spelling of 84196840 in words is "eighty-four million, one hundred ninety-six thousand, eight hundred forty".