342398891 has 4 divisors (see below), whose sum is σ = 342455784. Its totient is φ = 342342000.

The previous prime is 342398873. The next prime is 342398909. The reversal of 342398891 is 198893243.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (342398873) and next prime (342398909).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342398891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342398191) 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, 18185 + ... + 31866.

It is an arithmetic number, because the mean of its divisors is an integer number (85613946).

Almost surely, 2^342398891 is an apocalyptic number.

342398891 is a deficient number, since it is larger than the sum of its proper divisors (56893).

342398891 is an equidigital number, since it uses as much as digits as its factorization.

342398891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56892.

The product of its digits is 373248, while the sum is 47.

The square root of 342398891 is about 18504.0236435214. The cubic root of 342398891 is about 699.5908432034.

The spelling of 342398891 in words is "three hundred forty-two million, three hundred ninety-eight thousand, eight hundred ninety-one".