78327012 has 12 divisors (see below), whose sum is σ = 182763056. Its totient is φ = 26109000.

The previous prime is 78327001. The next prime is 78327061. The reversal of 78327012 is 21072387.

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

It is a super-2 number, since 2×78327012² = 12270241617696288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 3263614 + ... + 3263637.

Almost surely, 2^78327012 is an apocalyptic number.

It is an amenable number.

78327012 is an abundant number, since it is smaller than the sum of its proper divisors (104436044).

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

78327012 is a wasteful number, since it uses less digits than its factorization.

78327012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527258 (or 6527256 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 78327012 is about 8850.2549115831. The cubic root of 78327012 is about 427.8621342433.

Adding to 78327012 its reverse (21072387), we get a palindrome (99399399).

The spelling of 78327012 in words is "seventy-eight million, three hundred twenty-seven thousand, twelve".