343049657 has 4 divisors (see below), whose sum is σ = 351027600. Its totient is φ = 335071716.

The previous prime is 343049621. The next prime is 343049683. The reversal of 343049657 is 756940343.

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 a cyclic number.

It is not a de Polignac number, because 343049657 - 2⁶ = 343049593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343049687) 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, 3988907 + ... + 3988992.

It is an arithmetic number, because the mean of its divisors is an integer number (87756900).

Almost surely, 2^343049657 is an apocalyptic number.

It is an amenable number.

343049657 is a deficient number, since it is larger than the sum of its proper divisors (7977943).

343049657 is an equidigital number, since it uses as much as digits as its factorization.

343049657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7977942.

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 343049657 is about 18521.5997419229. The cubic root of 343049657 is about 700.0337786421.

The spelling of 343049657 in words is "three hundred forty-three million, forty-nine thousand, six hundred fifty-seven".