70317671 has 2 divisors, whose sum is σ = 70317672. Its totient is φ = 70317670.

The previous prime is 70317659. The next prime is 70317673. The reversal of 70317671 is 17671307.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70317671 is a prime.

Together with 70317673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70317673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35158835 + 35158836.

It is an arithmetic number, because the mean of its divisors is an integer number (35158836).

Almost surely, 2^70317671 is an apocalyptic number.

70317671 is a deficient number, since it is larger than the sum of its proper divisors (1).

70317671 is an equidigital number, since it uses as much as digits as its factorization.

70317671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6174, while the sum is 32.

The square root of 70317671 is about 8385.5632488223. The cubic root of 70317671 is about 412.7510239472.

Adding to 70317671 its reverse (17671307), we get a palindrome (87988978).

The spelling of 70317671 in words is "seventy million, three hundred seventeen thousand, six hundred seventy-one".