84078084 has 24 divisors (see below), whose sum is σ = 196354368. Its totient is φ = 28001440.

The previous prime is 84078083. The next prime is 84078089. The reversal of 84078084 is 48087048.

It is a super-2 number, since 2×84078084² = 14138248418222112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84078083) 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, 15814 + ... + 20450.

It is an arithmetic number, because the mean of its divisors is an integer number (8181432).

Almost surely, 2^84078084 is an apocalyptic number.

It is an amenable number.

84078084 is an abundant number, since it is smaller than the sum of its proper divisors (112276284).

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

84078084 is a wasteful number, since it uses less digits than its factorization.

84078084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155 (or 6153 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 84078084 is about 9169.4102318524. The cubic root of 84078084 is about 438.0875744909.

The spelling of 84078084 in words is "eighty-four million, seventy-eight thousand, eighty-four".