343947892 has 6 divisors (see below), whose sum is σ = 601908818. Its totient is φ = 171973944.

The previous prime is 343947889. The next prime is 343947941. The reversal of 343947892 is 298749343.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 179184996 + 164762896 = 13386^2 + 12836^2 .

It is a super-2 number, since 2×343947892² = 236600304822487328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42993483 + ... + 42993490.

Almost surely, 2^343947892 is an apocalyptic number.

It is an amenable number.

343947892 is a deficient number, since it is larger than the sum of its proper divisors (257960926).

343947892 is a wasteful number, since it uses less digits than its factorization.

343947892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85986977 (or 85986975 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 343947892 is about 18545.8322002546. The cubic root of 343947892 is about 700.6442314020.

The spelling of 343947892 in words is "three hundred forty-three million, nine hundred forty-seven thousand, eight hundred ninety-two".