342999997 has 4 divisors (see below), whose sum is σ = 343039840. Its totient is φ = 342960156.

The previous prime is 342999977. The next prime is 343000003. The reversal of 342999997 is 799999243.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 799999243 = 17 ⋅47058779.

It is a cyclic number.

It is not a de Polignac number, because 342999997 - 2⁷ = 342999869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342999947) 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, 1047 + ... + 26212.

It is an arithmetic number, because the mean of its divisors is an integer number (85759960).

Almost surely, 2^342999997 is an apocalyptic number.

It is an amenable number.

342999997 is a deficient number, since it is larger than the sum of its proper divisors (39843).

342999997 is a wasteful number, since it uses less digits than its factorization.

342999997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39842.

The product of its digits is 9920232, while the sum is 61.

The square root of 342999997 is about 18520.2590964597. The cubic root of 342999997 is about 699.9999979592. Note that the first 5 decimals are identical.

The spelling of 342999997 in words is "three hundred forty-two million, nine hundred ninety-nine thousand, nine hundred ninety-seven".