334487521 has 3 divisors (see below), whose sum is σ = 334505811. Its totient is φ = 334469232.

The previous prime is 334487519. The next prime is 334487561. The reversal of 334487521 is 125784433.

It is a happy number.

The square root of 334487521 is 18289.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 329821921 + 4665600 = 18161^2 + 2160^2 .

It is not a de Polignac number, because 334487521 - 2¹ = 334487519 is a prime.

It is a super-2 number, since 2×334487521² = 223763803409450882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334487561) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9145 + ... + 27433.

It is an arithmetic number, because the mean of its divisors is an integer number (111501937).

Almost surely, 2^334487521 is an apocalyptic number.

334487521 is the 18289-th square number.

334487521 is the 9145-th centered octagonal number.

It is an amenable number.

334487521 is a deficient number, since it is larger than the sum of its proper divisors (18290).

334487521 is an frugal number, since it uses more digits than its factorization.

334487521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36578 (or 18289 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The cubic root of 334487521 is about 694.1606214941.

The spelling of 334487521 in words is "three hundred thirty-four million, four hundred eighty-seven thousand, five hundred twenty-one".