71988703 has 2 divisors, whose sum is σ = 71988704. Its totient is φ = 71988702.

The previous prime is 71988677. The next prime is 71988713. The reversal of 71988703 is 30788917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71988703 - 2¹³ = 71980511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71988703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71988713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35994351 + 35994352.

It is an arithmetic number, because the mean of its divisors is an integer number (35994352).

Almost surely, 2^71988703 is an apocalyptic number.

71988703 is a deficient number, since it is larger than the sum of its proper divisors (1).

71988703 is an equidigital number, since it uses as much as digits as its factorization.

71988703 is an evil number, because the sum of its binary digits is even.

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

The square root of 71988703 is about 8484.6156660158. The cubic root of 71988703 is about 415.9950054103.

The spelling of 71988703 in words is "seventy-one million, nine hundred eighty-eight thousand, seven hundred three".