345023347 has 4 divisors (see below), whose sum is σ = 365318856. Its totient is φ = 324727840.

The previous prime is 345023339. The next prime is 345023359. The reversal of 345023347 is 743320543.

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

It is a cyclic number.

It is not a de Polignac number, because 345023347 - 2³ = 345023339 is a prime.

It is a super-2 number, since 2×345023347² = 238082219950164818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345023317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10147729 + ... + 10147762.

It is an arithmetic number, because the mean of its divisors is an integer number (91329714).

Almost surely, 2^345023347 is an apocalyptic number.

345023347 is a deficient number, since it is larger than the sum of its proper divisors (20295509).

345023347 is a wasteful number, since it uses less digits than its factorization.

345023347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20295508.

The product of its (nonzero) digits is 30240, while the sum is 31.

The square root of 345023347 is about 18574.8040904877. The cubic root of 345023347 is about 701.3737288656.

The spelling of 345023347 in words is "three hundred forty-five million, twenty-three thousand, three hundred forty-seven".