334772021 has 2 divisors, whose sum is σ = 334772022. Its totient is φ = 334772020.

The previous prime is 334772017. The next prime is 334772047. The reversal of 334772021 is 120277433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271887121 + 62884900 = 16489^2 + 7930^2 .

It is an emirp because it is prime and its reverse (120277433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 334772021 - 2² = 334772017 is a prime.

It is a super-2 number, since 2×334772021² = 224144612088848882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334772051) 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, 167386010 + 167386011.

It is an arithmetic number, because the mean of its divisors is an integer number (167386011).

Almost surely, 2^334772021 is an apocalyptic number.

It is an amenable number.

334772021 is a deficient number, since it is larger than the sum of its proper divisors (1).

334772021 is an equidigital number, since it uses as much as digits as its factorization.

334772021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 334772021 is about 18296.7762461041. The cubic root of 334772021 is about 694.3573729613.

The spelling of 334772021 in words is "three hundred thirty-four million, seven hundred seventy-two thousand, twenty-one".