71411999 has 2 divisors, whose sum is σ = 71412000. Its totient is φ = 71411998.

The previous prime is 71411993. The next prime is 71412049. The reversal of 71411999 is 99911417.

It is a weak prime.

It is an emirp because it is prime and its reverse (99911417) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71411999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71411993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35705999 + 35706000.

It is an arithmetic number, because the mean of its divisors is an integer number (35706000).

Almost surely, 2^71411999 is an apocalyptic number.

71411999 is a deficient number, since it is larger than the sum of its proper divisors (1).

71411999 is an equidigital number, since it uses as much as digits as its factorization.

71411999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 41.

The square root of 71411999 is about 8450.5620523134. The cubic root of 71411999 is about 414.8811756389.

The spelling of 71411999 in words is "seventy-one million, four hundred eleven thousand, nine hundred ninety-nine".