364065721 has 2 divisors, whose sum is σ = 364065722. Its totient is φ = 364065720.

The previous prime is 364065719. The next prime is 364065749. The reversal of 364065721 is 127560463.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364046400 + 19321 = 19080^2 + 139^2 .

It is an emirp because it is prime and its reverse (127560463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 364065721 - 2¹ = 364065719 is a prime.

Together with 364065719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (364065701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182032860 + 182032861.

It is an arithmetic number, because the mean of its divisors is an integer number (182032861).

Almost surely, 2^364065721 is an apocalyptic number.

It is an amenable number.

364065721 is a deficient number, since it is larger than the sum of its proper divisors (1).

364065721 is an equidigital number, since it uses as much as digits as its factorization.

364065721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 364065721 is about 19080.5063087959. The cubic root of 364065721 is about 714.0466672519.

The spelling of 364065721 in words is "three hundred sixty-four million, sixty-five thousand, seven hundred twenty-one".