334725721 has 4 divisors (see below), whose sum is σ = 365155344. Its totient is φ = 304296100.

The previous prime is 334725697. The next prime is 334725749. The reversal of 334725721 is 127527433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 334725721 - 2¹⁹ = 334201433 is a prime.

It is a super-2 number, since 2×334725721² = 224082616597939682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334725751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15214795 + ... + 15214816.

It is an arithmetic number, because the mean of its divisors is an integer number (91288836).

Almost surely, 2^334725721 is an apocalyptic number.

It is an amenable number.

334725721 is a deficient number, since it is larger than the sum of its proper divisors (30429623).

334725721 is a wasteful number, since it uses less digits than its factorization.

334725721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30429622.

The product of its digits is 35280, while the sum is 34.

The square root of 334725721 is about 18295.5109521434. The cubic root of 334725721 is about 694.3253608988.

It can be divided in two parts, 33472 and 5721, that added together give a palindrome (39193).

The spelling of 334725721 in words is "three hundred thirty-four million, seven hundred twenty-five thousand, seven hundred twenty-one".