342717681 has 4 divisors (see below), whose sum is σ = 456956912. Its totient is φ = 228478452.

The previous prime is 342717677. The next prime is 342717709. The reversal of 342717681 is 186717243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 342717681 - 2² = 342717677 is a prime.

It is a super-2 number, since 2×342717681² = 234910817740035522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342717481) 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, 57119611 + ... + 57119616.

It is an arithmetic number, because the mean of its divisors is an integer number (114239228).

Almost surely, 2^342717681 is an apocalyptic number.

It is an amenable number.

342717681 is a deficient number, since it is larger than the sum of its proper divisors (114239231).

342717681 is a wasteful number, since it uses less digits than its factorization.

342717681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114239230.

The product of its digits is 56448, while the sum is 39.

The square root of 342717681 is about 18512.6357118591. The cubic root of 342717681 is about 699.8078935421.

The spelling of 342717681 in words is "three hundred forty-two million, seven hundred seventeen thousand, six hundred eighty-one".