78324612 has 24 divisors (see below), whose sum is σ = 192376800. Its totient is φ = 24734016.

The previous prime is 78324553. The next prime is 78324613. The reversal of 78324612 is 21642387.

It is a super-2 number, since 2×78324612² = 12269489689901088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78324613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171537 + ... + 171992.

It is an arithmetic number, because the mean of its divisors is an integer number (8015700).

Almost surely, 2^78324612 is an apocalyptic number.

It is an amenable number.

78324612 is an abundant number, since it is smaller than the sum of its proper divisors (114052188).

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

78324612 is a wasteful number, since it uses less digits than its factorization.

78324612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343555 (or 343553 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 78324612 is about 8850.1193212295. The cubic root of 78324612 is about 427.8577641902.

Adding to 78324612 its reverse (21642387), we get a palindrome (99966999).

The spelling of 78324612 in words is "seventy-eight million, three hundred twenty-four thousand, six hundred twelve".