35721713 has 2 divisors, whose sum is σ = 35721714. Its totient is φ = 35721712.

The previous prime is 35721677. The next prime is 35721757. The reversal of 35721713 is 31712753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18515809 + 17205904 = 4303^2 + 4148^2 .

It is an emirp because it is prime and its reverse (31712753) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35721713 is a prime.

It is not a weakly prime, because it can be changed into another prime (35721773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17860856 + 17860857.

It is an arithmetic number, because the mean of its divisors is an integer number (17860857).

Almost surely, 2^35721713 is an apocalyptic number.

It is an amenable number.

35721713 is a deficient number, since it is larger than the sum of its proper divisors (1).

35721713 is an equidigital number, since it uses as much as digits as its factorization.

35721713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 29.

The square root of 35721713 is about 5976.7644256738. The cubic root of 35721713 is about 329.3397051069.

The spelling of 35721713 in words is "thirty-five million, seven hundred twenty-one thousand, seven hundred thirteen".