70919347 has 2 divisors, whose sum is σ = 70919348. Its totient is φ = 70919346.

The previous prime is 70919333. The next prime is 70919363. The reversal of 70919347 is 74391907.

It is a weak prime.

It is an emirp because it is prime and its reverse (74391907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70919347 - 2¹¹ = 70917299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70919747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35459673 + 35459674.

It is an arithmetic number, because the mean of its divisors is an integer number (35459674).

Almost surely, 2^70919347 is an apocalyptic number.

70919347 is a deficient number, since it is larger than the sum of its proper divisors (1).

70919347 is an equidigital number, since it uses as much as digits as its factorization.

70919347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 70919347 is about 8421.3625382120. The cubic root of 70919347 is about 413.9249224014.

The spelling of 70919347 in words is "seventy million, nine hundred nineteen thousand, three hundred forty-seven".