339466021 has 2 divisors, whose sum is σ = 339466022. Its totient is φ = 339466020.

The previous prime is 339465983. The next prime is 339466067. The reversal of 339466021 is 120664933.

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., 339075396 + 390625 = 18414^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 339466021 - 2⁹ = 339465509 is a prime.

It is equal to p_18267433 and since 339466021 and 18267433 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339466091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169733010 + 169733011.

It is an arithmetic number, because the mean of its divisors is an integer number (169733011).

Almost surely, 2^339466021 is an apocalyptic number.

It is an amenable number.

339466021 is a deficient number, since it is larger than the sum of its proper divisors (1).

339466021 is an equidigital number, since it uses as much as digits as its factorization.

339466021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 339466021 is about 18424.6036863755. The cubic root of 339466021 is about 697.5876285807.

The spelling of 339466021 in words is "three hundred thirty-nine million, four hundred sixty-six thousand, twenty-one".