339005221 has 2 divisors, whose sum is σ = 339005222. Its totient is φ = 339005220.

The previous prime is 339005213. The next prime is 339005287. The reversal of 339005221 is 122500933.

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., 288524196 + 50481025 = 16986^2 + 7105^2 .

It is a cyclic number.

It is not a de Polignac number, because 339005221 - 2³ = 339005213 is a prime.

It is a super-2 number, since 2×339005221² = 229849079730517682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339005021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169502610 + 169502611.

It is an arithmetic number, because the mean of its divisors is an integer number (169502611).

Almost surely, 2^339005221 is an apocalyptic number.

It is an amenable number.

339005221 is a deficient number, since it is larger than the sum of its proper divisors (1).

339005221 is an equidigital number, since it uses as much as digits as its factorization.

339005221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 339005221 is about 18412.0944218739. The cubic root of 339005221 is about 697.2718444603.

The spelling of 339005221 in words is "three hundred thirty-nine million, five thousand, two hundred twenty-one".