334020989 has 2 divisors, whose sum is σ = 334020990. Its totient is φ = 334020988.

The previous prime is 334020959. The next prime is 334020997. The reversal of 334020989 is 989020433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255840025 + 78180964 = 15995^2 + 8842^2 .

It is a cyclic number.

It is not a de Polignac number, because 334020989 - 2⁸ = 334020733 is a prime.

It is a super-2 number, since 2×334020989² = 223140042185076242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334020949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167010494 + 167010495.

It is an arithmetic number, because the mean of its divisors is an integer number (167010495).

Almost surely, 2^334020989 is an apocalyptic number.

It is an amenable number.

334020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

334020989 is an equidigital number, since it uses as much as digits as its factorization.

334020989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 334020989 is about 18276.2411069673. The cubic root of 334020989 is about 693.8377406653.

The spelling of 334020989 in words is "three hundred thirty-four million, twenty thousand, nine hundred eighty-nine".