78917041 has 16 divisors (see below), whose sum is σ = 95626240. Its totient is φ = 63685440.

The previous prime is 78917029. The next prime is 78917081. The reversal of 78917041 is 14071987.

It is not a de Polignac number, because 78917041 - 2⁹ = 78916529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78917011) 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 in 15 ways as a sum of consecutive naturals, for example, 3115 + ... + 12943.

It is an arithmetic number, because the mean of its divisors is an integer number (5976640).

Almost surely, 2^78917041 is an apocalyptic number.

It is an amenable number.

78917041 is a deficient number, since it is larger than the sum of its proper divisors (16709199).

78917041 is a wasteful number, since it uses less digits than its factorization.

78917041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9904.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 78917041 is about 8883.5263831431. The cubic root of 78917041 is about 428.9337943884.

The spelling of 78917041 in words is "seventy-eight million, nine hundred seventeen thousand, forty-one".