342838817 has 4 divisors (see below), whose sum is σ = 342899076. Its totient is φ = 342778560.

The previous prime is 342838777. The next prime is 342838861. The reversal of 342838817 is 718838243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718838243 = 67 ⋅10728929.

It can be written as a sum of positive squares in 2 ways, for example, as 169416256 + 173422561 = 13016^2 + 13169^2 .

It is a cyclic number.

It is not a de Polignac number, because 342838817 - 2²⁴ = 326061601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342838217) 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, 20588 + ... + 33309.

It is an arithmetic number, because the mean of its divisors is an integer number (85724769).

Almost surely, 2^342838817 is an apocalyptic number.

It is an amenable number.

342838817 is a deficient number, since it is larger than the sum of its proper divisors (60259).

342838817 is an equidigital number, since it uses as much as digits as its factorization.

342838817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60258.

The product of its digits is 258048, while the sum is 44.

The square root of 342838817 is about 18515.9071341374. The cubic root of 342838817 is about 699.8903345208.

The spelling of 342838817 in words is "three hundred forty-two million, eight hundred thirty-eight thousand, eight hundred seventeen".