78753223 has 2 divisors, whose sum is σ = 78753224. Its totient is φ = 78753222.

The previous prime is 78753209. The next prime is 78753229. The reversal of 78753223 is 32235787.

It is a strong prime.

It is an emirp because it is prime and its reverse (32235787) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78753223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78753229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39376611 + 39376612.

It is an arithmetic number, because the mean of its divisors is an integer number (39376612).

Almost surely, 2^78753223 is an apocalyptic number.

78753223 is a deficient number, since it is larger than the sum of its proper divisors (1).

78753223 is an equidigital number, since it uses as much as digits as its factorization.

78753223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 37.

The square root of 78753223 is about 8874.3012682690. The cubic root of 78753223 is about 428.6367915598.

The spelling of 78753223 in words is "seventy-eight million, seven hundred fifty-three thousand, two hundred twenty-three".