84036880 has 40 divisors (see below), whose sum is σ = 200159064. Its totient is φ = 32793600.

The previous prime is 84036859. The next prime is 84036907. The reversal of 84036880 is 8863048.

It can be written as a sum of positive squares in 4 ways, for example, as 1517824 + 82519056 = 1232^2 + 9084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9531 + ... + 16090.

Almost surely, 2^84036880 is an apocalyptic number.

84036880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84036880 is an abundant number, since it is smaller than the sum of its proper divisors (116122184).

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

84036880 is a wasteful number, since it uses less digits than its factorization.

84036880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25675 (or 25669 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 84036880 is about 9167.1631380706. The cubic root of 84036880 is about 438.0159985260.

The spelling of 84036880 in words is "eighty-four million, thirty-six thousand, eight hundred eighty".