78084700 has 36 divisors (see below), whose sum is σ = 170145360. Its totient is φ = 31104640.

The previous prime is 78084683. The next prime is 78084703. The reversal of 78084700 is 748087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78084703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24816 + ... + 27784.

It is an arithmetic number, because the mean of its divisors is an integer number (4726260).

Almost surely, 2^78084700 is an apocalyptic number.

It is an amenable number.

78084700 is an abundant number, since it is smaller than the sum of its proper divisors (92060660).

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

78084700 is a wasteful number, since it uses less digits than its factorization.

78084700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 78084700 is about 8836.5547585018. The cubic root of 78084700 is about 427.4204678604.

The spelling of 78084700 in words is "seventy-eight million, eighty-four thousand, seven hundred".