70717291 has 2 divisors, whose sum is σ = 70717292. Its totient is φ = 70717290.

The previous prime is 70717289. The next prime is 70717301. The reversal of 70717291 is 19271707.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70717291 - 2¹ = 70717289 is a prime.

Together with 70717289, it forms a pair of twin primes.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35358645 + 35358646.

It is an arithmetic number, because the mean of its divisors is an integer number (35358646).

Almost surely, 2^70717291 is an apocalyptic number.

70717291 is a deficient number, since it is larger than the sum of its proper divisors (1).

70717291 is an equidigital number, since it uses as much as digits as its factorization.

70717291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 70717291 is about 8409.3573476218. The cubic root of 70717291 is about 413.5314445864.

Adding to 70717291 its reverse (19271707), we get a palindrome (89988998).

The spelling of 70717291 in words is "seventy million, seven hundred seventeen thousand, two hundred ninety-one".