78012908 has 6 divisors (see below), whose sum is σ = 136522596. Its totient is φ = 39006452.

The previous prime is 78012899. The next prime is 78012911. The reversal of 78012908 is 80921087.

It is a happy number.

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 as a sum of consecutive naturals, namely, 9751610 + ... + 9751617.

It is an arithmetic number, because the mean of its divisors is an integer number (22753766).

Almost surely, 2^78012908 is an apocalyptic number.

It is an amenable number.

78012908 is a deficient number, since it is larger than the sum of its proper divisors (58509688).

78012908 is a wasteful number, since it uses less digits than its factorization.

78012908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19503231 (or 19503229 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 78012908 is about 8832.4916076949. The cubic root of 78012908 is about 427.2894358776.

The spelling of 78012908 in words is "seventy-eight million, twelve thousand, nine hundred eight".