70889317 has 2 divisors, whose sum is σ = 70889318. Its totient is φ = 70889316.

The previous prime is 70889293. The next prime is 70889333. The reversal of 70889317 is 71398807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46594276 + 24295041 = 6826^2 + 4929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70889317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70887317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35444658 + 35444659.

It is an arithmetic number, because the mean of its divisors is an integer number (35444659).

Almost surely, 2^70889317 is an apocalyptic number.

It is an amenable number.

70889317 is a deficient number, since it is larger than the sum of its proper divisors (1).

70889317 is an equidigital number, since it uses as much as digits as its factorization.

70889317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 70889317 is about 8419.5793837935. The cubic root of 70889317 is about 413.8664902018.

The spelling of 70889317 in words is "seventy million, eight hundred eighty-nine thousand, three hundred seventeen".