78306108 has 24 divisors (see below), whose sum is σ = 184526160. Its totient is φ = 25843200.

The previous prime is 78306103. The next prime is 78306161. The reversal of 78306108 is 80160387.

It is a super-2 number, since 2×78306108² = 12263693100215328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78306103) 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, 31093 + ... + 33516.

It is an arithmetic number, because the mean of its divisors is an integer number (7688590).

Almost surely, 2^78306108 is an apocalyptic number.

It is an amenable number.

78306108 is an abundant number, since it is smaller than the sum of its proper divisors (106220052).

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

78306108 is a wasteful number, since it uses less digits than its factorization.

78306108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64717 (or 64715 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 78306108 is about 8849.0738498444. The cubic root of 78306108 is about 427.8240680828.

The spelling of 78306108 in words is "seventy-eight million, three hundred six thousand, one hundred eight".