71089199 has 2 divisors, whose sum is σ = 71089200. Its totient is φ = 71089198.

The previous prime is 71089181. The next prime is 71089219. The reversal of 71089199 is 99198017.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71089199 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 (71089399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35544599 + 35544600.

It is an arithmetic number, because the mean of its divisors is an integer number (35544600).

Almost surely, 2^71089199 is an apocalyptic number.

71089199 is a deficient number, since it is larger than the sum of its proper divisors (1).

71089199 is an equidigital number, since it uses as much as digits as its factorization.

71089199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 71089199 is about 8431.4410986497. The cubic root of 71089199 is about 414.2551093240.

The spelling of 71089199 in words is "seventy-one million, eighty-nine thousand, one hundred ninety-nine".