70723693 has 2 divisors, whose sum is σ = 70723694. Its totient is φ = 70723692.

The previous prime is 70723657. The next prime is 70723699. The reversal of 70723693 is 39632707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70341769 + 381924 = 8387^2 + 618^2 .

It is an emirp because it is prime and its reverse (39632707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70723693 - 2⁹ = 70723181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70723699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35361846 + 35361847.

It is an arithmetic number, because the mean of its divisors is an integer number (35361847).

Almost surely, 2^70723693 is an apocalyptic number.

It is an amenable number.

70723693 is a deficient number, since it is larger than the sum of its proper divisors (1).

70723693 is an equidigital number, since it uses as much as digits as its factorization.

70723693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 70723693 is about 8409.7379864060. The cubic root of 70723693 is about 413.5439231396.

The spelling of 70723693 in words is "seventy million, seven hundred twenty-three thousand, six hundred ninety-three".