343241861 has 4 divisors (see below), whose sum is σ = 345226092. Its totient is φ = 341257632.

The previous prime is 343241851. The next prime is 343241863. The reversal of 343241861 is 168142343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168142343 = 19 ⋅8849597.

It can be written as a sum of positive squares in 2 ways, for example, as 148108900 + 195132961 = 12170^2 + 13969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343241861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343241863) 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, 991856 + ... + 992201.

It is an arithmetic number, because the mean of its divisors is an integer number (86306523).

Almost surely, 2^343241861 is an apocalyptic number.

It is an amenable number.

343241861 is a deficient number, since it is larger than the sum of its proper divisors (1984231).

343241861 is a wasteful number, since it uses less digits than its factorization.

343241861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984230.

The product of its digits is 13824, while the sum is 32.

The square root of 343241861 is about 18526.7876600343. The cubic root of 343241861 is about 700.1644926355.

The spelling of 343241861 in words is "three hundred forty-three million, two hundred forty-one thousand, eight hundred sixty-one".