78470803 has 2 divisors, whose sum is σ = 78470804. Its totient is φ = 78470802.

The previous prime is 78470789. The next prime is 78470849. The reversal of 78470803 is 30807487.

It is a weak prime.

It is an emirp because it is prime and its reverse (30807487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78470803 - 2⁵ = 78470771 is a prime.

It is not a weakly prime, because it can be changed into another prime (78470863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39235401 + 39235402.

It is an arithmetic number, because the mean of its divisors is an integer number (39235402).

Almost surely, 2^78470803 is an apocalyptic number.

78470803 is a deficient number, since it is larger than the sum of its proper divisors (1).

78470803 is an equidigital number, since it uses as much as digits as its factorization.

78470803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 78470803 is about 8858.3747380657. The cubic root of 78470803 is about 428.1237941465.

The spelling of 78470803 in words is "seventy-eight million, four hundred seventy thousand, eight hundred three".