78312036 has 24 divisors (see below), whose sum is σ = 199340064. Its totient is φ = 23730880.

The previous prime is 78312029. The next prime is 78312061. The reversal of 78312036 is 63021387.

It is a super-2 number, since 2×78312036² = 12265549964930592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78311994 and 78312012.

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 7 ways as a sum of consecutive naturals, for example, 296505 + ... + 296768.

It is an arithmetic number, because the mean of its divisors is an integer number (8305836).

Almost surely, 2^78312036 is an apocalyptic number.

It is an amenable number.

78312036 is an abundant number, since it is smaller than the sum of its proper divisors (121028028).

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

78312036 is a wasteful number, since it uses less digits than its factorization.

78312036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593291 (or 593289 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 78312036 is about 8849.4087938122. The cubic root of 78312036 is about 427.8348636522.

The spelling of 78312036 in words is "seventy-eight million, three hundred twelve thousand, thirty-six".