341874781 has 2 divisors, whose sum is σ = 341874782. Its totient is φ = 341874780.

The previous prime is 341874779. The next prime is 341874817. The reversal of 341874781 is 187478143.

Together with next prime (341874817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315772900 + 26101881 = 17770^2 + 5109^2 .

It is a cyclic number.

It is not a de Polignac number, because 341874781 - 2¹ = 341874779 is a prime.

It is a super-2 number, since 2×341874781² = 233756731767595922, which contains 22 as substring.

Together with 341874779, it forms a pair of twin primes.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (341878781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170937390 + 170937391.

It is an arithmetic number, because the mean of its divisors is an integer number (170937391).

Almost surely, 2^341874781 is an apocalyptic number.

It is an amenable number.

341874781 is a deficient number, since it is larger than the sum of its proper divisors (1).

341874781 is an equidigital number, since it uses as much as digits as its factorization.

341874781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 43.

The square root of 341874781 is about 18489.8561649354. The cubic root of 341874781 is about 699.2337063384.

The spelling of 341874781 in words is "three hundred forty-one million, eight hundred seventy-four thousand, seven hundred eighty-one".