78575041 has 2 divisors, whose sum is σ = 78575042. Its totient is φ = 78575040.

The previous prime is 78575039. The next prime is 78575047. The reversal of 78575041 is 14057587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76387600 + 2187441 = 8740^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 78575041 - 2¹ = 78575039 is a prime.

Together with 78575039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (78575047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39287520 + 39287521.

It is an arithmetic number, because the mean of its divisors is an integer number (39287521).

Almost surely, 2^78575041 is an apocalyptic number.

It is an amenable number.

78575041 is a deficient number, since it is larger than the sum of its proper divisors (1).

78575041 is an equidigital number, since it uses as much as digits as its factorization.

78575041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 78575041 is about 8864.2563703900. The cubic root of 78575041 is about 428.3132787305.

The spelling of 78575041 in words is "seventy-eight million, five hundred seventy-five thousand, forty-one".