3374215721 has 2 divisors, whose sum is σ = 3374215722. Its totient is φ = 3374215720.

The previous prime is 3374215717. The next prime is 3374215751. The reversal of 3374215721 is 1275124733.

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., 2325168400 + 1049047321 = 48220^2 + 32389^2 .

It is an emirp because it is prime and its reverse (1275124733) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3374215721 - 2² = 3374215717 is a prime.

It is a super-2 number, since 2×3374215721² = 22770663463687099682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3374215711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1687107860 + 1687107861.

It is an arithmetic number, because the mean of its divisors is an integer number (1687107861).

Almost surely, 2^3374215721 is an apocalyptic number.

It is an amenable number.

3374215721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3374215721 is an equidigital number, since it uses as much as digits as its factorization.

3374215721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 3374215721 is about 58087.9998020245. Note that the first 3 decimals coincide. The cubic root of 3374215721 is about 1499.8838015174.

The spelling of 3374215721 in words is "three billion, three hundred seventy-four million, two hundred fifteen thousand, seven hundred twenty-one".