71700569 has 2 divisors, whose sum is σ = 71700570. Its totient is φ = 71700568.

The previous prime is 71700539. The next prime is 71700571. The reversal of 71700569 is 96500717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 17530969 = 7360^2 + 4187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71700569 is a prime.

It is a super-2 number, since 2×71700569² = 10281943189847522, which contains 22 as substring.

Together with 71700571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71700529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35850284 + 35850285.

It is an arithmetic number, because the mean of its divisors is an integer number (35850285).

Almost surely, 2^71700569 is an apocalyptic number.

It is an amenable number.

71700569 is a deficient number, since it is larger than the sum of its proper divisors (1).

71700569 is an equidigital number, since it uses as much as digits as its factorization.

71700569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 71700569 is about 8467.6188506569. The cubic root of 71700569 is about 415.4392581320.

The spelling of 71700569 in words is "seventy-one million, seven hundred thousand, five hundred sixty-nine".