3364500721 has 2 divisors, whose sum is σ = 3364500722. Its totient is φ = 3364500720.

The previous prime is 3364500707. The next prime is 3364500793. The reversal of 3364500721 is 1270054633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3236358321 + 128142400 = 56889^2 + 11320^2 .

It is a cyclic number.

It is not a de Polignac number, because 3364500721 - 2¹⁹ = 3363976433 is a prime.

It is a super-2 number, since 2×3364500721² = 22639730203219039682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3364500121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1682250360 + 1682250361.

It is an arithmetic number, because the mean of its divisors is an integer number (1682250361).

Almost surely, 2^3364500721 is an apocalyptic number.

It is an amenable number.

3364500721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3364500721 is an equidigital number, since it uses as much as digits as its factorization.

3364500721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 3364500721 is about 58004.3163997301. The cubic root of 3364500721 is about 1498.4429355187.

The spelling of 3364500721 in words is "three billion, three hundred sixty-four million, five hundred thousand, seven hundred twenty-one".