78954299 has 2 divisors, whose sum is σ = 78954300. Its totient is φ = 78954298.

The previous prime is 78954287. The next prime is 78954347. The reversal of 78954299 is 99245987.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78954299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78954299.

It is not a weakly prime, because it can be changed into another prime (78954209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39477149 + 39477150.

It is an arithmetic number, because the mean of its divisors is an integer number (39477150).

Almost surely, 2^78954299 is an apocalyptic number.

78954299 is a deficient number, since it is larger than the sum of its proper divisors (1).

78954299 is an equidigital number, since it uses as much as digits as its factorization.

78954299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 53.

The square root of 78954299 is about 8885.6231632902. The cubic root of 78954299 is about 429.0012859415.

The spelling of 78954299 in words is "seventy-eight million, nine hundred fifty-four thousand, two hundred ninety-nine".