78605203 has 2 divisors, whose sum is σ = 78605204. Its totient is φ = 78605202.

The previous prime is 78605179. The next prime is 78605207. The reversal of 78605203 is 30250687.

It is a strong prime.

It is an emirp because it is prime and its reverse (30250687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78605203 - 2¹³ = 78597011 is a prime.

It is not a weakly prime, because it can be changed into another prime (78605207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39302601 + 39302602.

It is an arithmetic number, because the mean of its divisors is an integer number (39302602).

Almost surely, 2^78605203 is an apocalyptic number.

78605203 is a deficient number, since it is larger than the sum of its proper divisors (1).

78605203 is an equidigital number, since it uses as much as digits as its factorization.

78605203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 78605203 is about 8865.9575342994. The cubic root of 78605203 is about 428.3680761670.

The spelling of 78605203 in words is "seventy-eight million, six hundred five thousand, two hundred three".