71048689 has 2 divisors, whose sum is σ = 71048690. Its totient is φ = 71048688.

The previous prime is 71048687. The next prime is 71048701. The reversal of 71048689 is 98684017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44957025 + 26091664 = 6705^2 + 5108^2 .

It is a cyclic number.

It is not a de Polignac number, because 71048689 - 2¹ = 71048687 is a prime.

Together with 71048687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71048687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35524344 + 35524345.

It is an arithmetic number, because the mean of its divisors is an integer number (35524345).

Almost surely, 2^71048689 is an apocalyptic number.

It is an amenable number.

71048689 is a deficient number, since it is larger than the sum of its proper divisors (1).

71048689 is an equidigital number, since it uses as much as digits as its factorization.

71048689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 71048689 is about 8429.0384386358. The cubic root of 71048689 is about 414.1764069644.

The spelling of 71048689 in words is "seventy-one million, forty-eight thousand, six hundred eighty-nine".