78075043 has 2 divisors, whose sum is σ = 78075044. Its totient is φ = 78075042.

The previous prime is 78075017. The next prime is 78075071. The reversal of 78075043 is 34057087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78075043 - 2²⁵ = 44520611 is a prime.

It is not a weakly prime, because it can be changed into another prime (78073043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39037521 + 39037522.

It is an arithmetic number, because the mean of its divisors is an integer number (39037522).

Almost surely, 2^78075043 is an apocalyptic number.

78075043 is a deficient number, since it is larger than the sum of its proper divisors (1).

78075043 is an equidigital number, since it uses as much as digits as its factorization.

78075043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 78075043 is about 8836.0083182396. The cubic root of 78075043 is about 427.4028469537.

The spelling of 78075043 in words is "seventy-eight million, seventy-five thousand, forty-three".