78070636 has 24 divisors (see below), whose sum is σ = 157197600. Its totient is φ = 33232512.

The previous prime is 78070627. The next prime is 78070649. The reversal of 78070636 is 63607087.

It is a super-3 number, since 3×78070636³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78070595 and 78070604.

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, 5185 + ... + 13528.

It is an arithmetic number, because the mean of its divisors is an integer number (6549900).

Almost surely, 2^78070636 is an apocalyptic number.

It is an amenable number.

78070636 is an abundant number, since it is smaller than the sum of its proper divisors (79126964).

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

78070636 is a wasteful number, since it uses less digits than its factorization.

78070636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18873 (or 18871 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 78070636 is about 8835.7589374088. The cubic root of 78070636 is about 427.3948051190.

The spelling of 78070636 in words is "seventy-eight million, seventy thousand, six hundred thirty-six".