78673003 has 2 divisors, whose sum is σ = 78673004. Its totient is φ = 78673002.

The previous prime is 78672983. The next prime is 78673051. The reversal of 78673003 is 30037687.

It is a weak prime.

It is an emirp because it is prime and its reverse (30037687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78673003 - 2⁹ = 78672491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78673003.

It is not a weakly prime, because it can be changed into another prime (78673403) 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 as a sum of consecutive naturals, namely, 39336501 + 39336502.

It is an arithmetic number, because the mean of its divisors is an integer number (39336502).

Almost surely, 2^78673003 is an apocalyptic number.

78673003 is a deficient number, since it is larger than the sum of its proper divisors (1).

78673003 is an equidigital number, since it uses as much as digits as its factorization.

78673003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 78673003 is about 8869.7803242245. The cubic root of 78673003 is about 428.4912020676.

The spelling of 78673003 in words is "seventy-eight million, six hundred seventy-three thousand, three".