84199856 has 30 divisors (see below), whose sum is σ = 176657220. Its totient is φ = 38860224.

The previous prime is 84199853. The next prime is 84199873. The reversal of 84199856 is 65899148.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84199853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12866 + ... + 18273.

It is an arithmetic number, because the mean of its divisors is an integer number (5888574).

Almost surely, 2^84199856 is an apocalyptic number.

It is an amenable number.

84199856 is an abundant number, since it is smaller than the sum of its proper divisors (92457364).

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

84199856 is a wasteful number, since it uses less digits than its factorization.

84199856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31173 (or 31154 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 84199856 is about 9176.0479510517. The cubic root of 84199856 is about 438.2989695174.

It can be divided in two parts, 841 and 99856, that multiplied together give a square (83978896 = 9164²).

The spelling of 84199856 in words is "eighty-four million, one hundred ninety-nine thousand, eight hundred fifty-six".