70956913 has 2 divisors, whose sum is σ = 70956914. Its totient is φ = 70956912.

The previous prime is 70956911. The next prime is 70956959. The reversal of 70956913 is 31965907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69338929 + 1617984 = 8327^2 + 1272^2 .

It is an emirp because it is prime and its reverse (31965907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70956913 - 2¹ = 70956911 is a prime.

Together with 70956911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70956911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35478456 + 35478457.

It is an arithmetic number, because the mean of its divisors is an integer number (35478457).

Almost surely, 2^70956913 is an apocalyptic number.

It is an amenable number.

70956913 is a deficient number, since it is larger than the sum of its proper divisors (1).

70956913 is an equidigital number, since it uses as much as digits as its factorization.

70956913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 70956913 is about 8423.5926420976. The cubic root of 70956913 is about 413.9979948871.

The spelling of 70956913 in words is "seventy million, nine hundred fifty-six thousand, nine hundred thirteen".