78300084 has 12 divisors (see below), whose sum is σ = 182700224. Its totient is φ = 26100024.

The previous prime is 78300071. The next prime is 78300091. The reversal of 78300084 is 48000387.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78300084² = 12261806308814112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3262492 + ... + 3262515.

Almost surely, 2^78300084 is an apocalyptic number.

It is an amenable number.

78300084 is an abundant number, since it is smaller than the sum of its proper divisors (104400140).

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

78300084 is a wasteful number, since it uses less digits than its factorization.

78300084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525014 (or 6525012 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 78300084 is about 8848.7334686948. The cubic root of 78300084 is about 427.8130971281.

The spelling of 78300084 in words is "seventy-eight million, three hundred thousand, eighty-four".