71879803 has 2 divisors, whose sum is σ = 71879804. Its totient is φ = 71879802.

The previous prime is 71879771. The next prime is 71879867. The reversal of 71879803 is 30897817.

It is a weak prime.

It is an emirp because it is prime and its reverse (30897817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71879803 - 2⁵ = 71879771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71879803.

It is not a weakly prime, because it can be changed into another prime (71879303) 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, 35939901 + 35939902.

It is an arithmetic number, because the mean of its divisors is an integer number (35939902).

Almost surely, 2^71879803 is an apocalyptic number.

71879803 is a deficient number, since it is larger than the sum of its proper divisors (1).

71879803 is an equidigital number, since it uses as much as digits as its factorization.

71879803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 71879803 is about 8478.1957396607. The cubic root of 71879803 is about 415.7851358211.

The spelling of 71879803 in words is "seventy-one million, eight hundred seventy-nine thousand, eight hundred three".