84203680 has 48 divisors (see below), whose sum is σ = 217020384. Its totient is φ = 30618880.

The previous prime is 84203659. The next prime is 84203689. The reversal of 84203680 is 8630248.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84203689) 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, 22162 + ... + 25681.

It is an arithmetic number, because the mean of its divisors is an integer number (4521258).

Almost surely, 2^84203680 is an apocalyptic number.

84203680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84203680 is an abundant number, since it is smaller than the sum of its proper divisors (132816704).

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

84203680 is a wasteful number, since it uses less digits than its factorization.

84203680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47869 (or 47861 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 84203680 is about 9176.2563172571. The cubic root of 84203680 is about 438.3056046432.

It can be divided in two parts, 8420 and 3680, that added together give a square (12100 = 110²).

The spelling of 84203680 in words is "eighty-four million, two hundred three thousand, six hundred eighty".