70713817 has 2 divisors, whose sum is σ = 70713818. Its totient is φ = 70713816.

The previous prime is 70713791. The next prime is 70713857. The reversal of 70713817 is 71831707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69705801 + 1008016 = 8349^2 + 1004^2 .

It is an emirp because it is prime and its reverse (71831707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70713817 - 2¹¹ = 70711769 is a prime.

It is not a weakly prime, because it can be changed into another prime (70713857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35356908 + 35356909.

It is an arithmetic number, because the mean of its divisors is an integer number (35356909).

Almost surely, 2^70713817 is an apocalyptic number.

It is an amenable number.

70713817 is a deficient number, since it is larger than the sum of its proper divisors (1).

70713817 is an equidigital number, since it uses as much as digits as its factorization.

70713817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 70713817 is about 8409.1507894674. The cubic root of 70713817 is about 413.5246728726.

The spelling of 70713817 in words is "seventy million, seven hundred thirteen thousand, eight hundred seventeen".