334487561 has 2 divisors, whose sum is σ = 334487562. Its totient is φ = 334487560.

The previous prime is 334487519. The next prime is 334487599. The reversal of 334487561 is 165784433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217739536 + 116748025 = 14756^2 + 10805^2 .

It is a cyclic number.

It is not a de Polignac number, because 334487561 - 2¹⁸ = 334225417 is a prime.

It is a super-2 number, since 2×334487561² = 223763856927457442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (334487161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167243780 + 167243781.

It is an arithmetic number, because the mean of its divisors is an integer number (167243781).

Almost surely, 2^334487561 is an apocalyptic number.

It is an amenable number.

334487561 is a deficient number, since it is larger than the sum of its proper divisors (1).

334487561 is an equidigital number, since it uses as much as digits as its factorization.

334487561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 334487561 is about 18289.0010935535. The cubic root of 334487561 is about 694.1606491647.

The spelling of 334487561 in words is "three hundred thirty-four million, four hundred eighty-seven thousand, five hundred sixty-one".