334721 has 2 divisors, whose sum is σ = 334722. Its totient is φ = 334720.

The previous prime is 334717. The next prime is 334727. The reversal of 334721 is 127433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 4096 = 575^2 + 64^2 .

It is a cyclic number.

It is not a de Polignac number, because 334721 - 2² = 334717 is a prime.

It is a super-2 number, since 2×334721² = 224076295682, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 334693 and 334702.

It is not a weakly prime, because it can be changed into another prime (334727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167360 + 167361.

It is an arithmetic number, because the mean of its divisors is an integer number (167361).

2³³⁴⁷²¹ is an apocalyptic number.

It is an amenable number.

334721 is a deficient number, since it is larger than the sum of its proper divisors (1).

334721 is an equidigital number, since it uses as much as digits as its factorization.

334721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 20.

The square root of 334721 is about 578.5507756455. The cubic root of 334721 is about 69.4322096609.

The spelling of 334721 in words is "three hundred thirty-four thousand, seven hundred twenty-one".