341543721 has 16 divisors (see below), whose sum is σ = 479905920. Its totient is φ = 215635200.

The previous prime is 341543669. The next prime is 341543731. The reversal of 341543721 is 127345143.

It is a happy number.

It is not a de Polignac number, because 341543721 - 2¹⁰ = 341542697 is a prime.

It is a super-2 number, since 2×341543721² = 233304226709051682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (341543731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17536 + ... + 31473.

It is an arithmetic number, because the mean of its divisors is an integer number (29994120).

Almost surely, 2^341543721 is an apocalyptic number.

It is an amenable number.

341543721 is a deficient number, since it is larger than the sum of its proper divisors (138362199).

341543721 is a wasteful number, since it uses less digits than its factorization.

341543721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49136.

The product of its digits is 10080, while the sum is 30.

The square root of 341543721 is about 18480.9015202181. The cubic root of 341543721 is about 699.0079286699.

Adding to 341543721 its reverse (127345143), we get a palindrome (468888864).

The spelling of 341543721 in words is "three hundred forty-one million, five hundred forty-three thousand, seven hundred twenty-one".