334981021 has 2 divisors, whose sum is σ = 334981022. Its totient is φ = 334981020.

The previous prime is 334981007. The next prime is 334981027. The reversal of 334981021 is 120189433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312759225 + 22221796 = 17685^2 + 4714^2 .

It is a cyclic number.

It is not a de Polignac number, because 334981021 - 2²⁷ = 200763293 is a prime.

It is a super-2 number, since 2×334981021² = 224424568860404882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334981027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167490510 + 167490511.

It is an arithmetic number, because the mean of its divisors is an integer number (167490511).

Almost surely, 2^334981021 is an apocalyptic number.

It is an amenable number.

334981021 is a deficient number, since it is larger than the sum of its proper divisors (1).

334981021 is an equidigital number, since it uses as much as digits as its factorization.

334981021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 334981021 is about 18302.4867436095. The cubic root of 334981021 is about 694.5018399343.

The spelling of 334981021 in words is "three hundred thirty-four million, nine hundred eighty-one thousand, twenty-one".