78868043 has 2 divisors, whose sum is σ = 78868044. Its totient is φ = 78868042.

The previous prime is 78867983. The next prime is 78868079. The reversal of 78868043 is 34086887.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78868043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78867985 and 78868003.

It is not a weakly prime, because it can be changed into another prime (78868093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39434021 + 39434022.

It is an arithmetic number, because the mean of its divisors is an integer number (39434022).

Almost surely, 2^78868043 is an apocalyptic number.

78868043 is a deficient number, since it is larger than the sum of its proper divisors (1).

78868043 is an equidigital number, since it uses as much as digits as its factorization.

78868043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 78868043 is about 8880.7681537128. The cubic root of 78868043 is about 428.8450038942.

The spelling of 78868043 in words is "seventy-eight million, eight hundred sixty-eight thousand, forty-three".