341278721 has 8 divisors (see below), whose sum is σ = 402614784. Its totient is φ = 283088160.

The previous prime is 341278709. The next prime is 341278733. The reversal of 341278721 is 127872143.

It is an interprime number because it is at equal distance from previous prime (341278709) and next prime (341278733).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 341278721 - 2¹⁰ = 341277697 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (341272721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786140 + ... + 786573.

It is an arithmetic number, because the mean of its divisors is an integer number (50326848).

It is a Proth number, since it is equal to 10415 ⋅ 2¹⁵ + 1 and 10415 < 2¹⁵.

Almost surely, 2^341278721 is an apocalyptic number.

341278721 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

341278721 is a deficient number, since it is larger than the sum of its proper divisors (61336063).

341278721 is a wasteful number, since it uses less digits than its factorization.

341278721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572751.

The product of its digits is 18816, while the sum is 35.

The square root of 341278721 is about 18473.7305653190. The cubic root of 341278721 is about 698.8270977170.

The spelling of 341278721 in words is "three hundred forty-one million, two hundred seventy-eight thousand, seven hundred twenty-one".