78912603 has 32 divisors (see below), whose sum is σ = 145758720. Its totient is φ = 40992480.

The previous prime is 78912599. The next prime is 78912619. The reversal of 78912603 is 30621987.

It is not a de Polignac number, because 78912603 - 2² = 78912599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78912653) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 16900 + ... + 21057.

It is an arithmetic number, because the mean of its divisors is an integer number (4554960).

Almost surely, 2^78912603 is an apocalyptic number.

78912603 is a deficient number, since it is larger than the sum of its proper divisors (66846117).

78912603 is a wasteful number, since it uses less digits than its factorization.

78912603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37984 (or 37978 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 78912603 is about 8883.2765914385. The cubic root of 78912603 is about 428.9257536922.

The spelling of 78912603 in words is "seventy-eight million, nine hundred twelve thousand, six hundred three".