78935012 has 24 divisors (see below), whose sum is σ = 157514616. Its totient is φ = 34288128.

The previous prime is 78935009. The next prime is 78935053. The reversal of 78935012 is 21053987.

It can be written as a sum of positive squares in 4 ways, for example, as 541696 + 78393316 = 736^2 + 8854^2 .

It is a super-2 number, since 2×78935012² = 12461472238880288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43763 + ... + 45530.

It is an arithmetic number, because the mean of its divisors is an integer number (6563109).

Almost surely, 2^78935012 is an apocalyptic number.

It is an amenable number.

78935012 is a deficient number, since it is larger than the sum of its proper divisors (78579604).

78935012 is a wasteful number, since it uses less digits than its factorization.

78935012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89327 (or 89325 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 78935012 is about 8884.5378045231. The cubic root of 78935012 is about 428.9663508726.

Adding to 78935012 its reverse (21053987), we get a palindrome (99988999).

The spelling of 78935012 in words is "seventy-eight million, nine hundred thirty-five thousand, twelve".