345007 has 4 divisors (see below), whose sum is σ = 371560. Its totient is φ = 318456.

The previous prime is 345001. The next prime is 345011. The reversal of 345007 is 700543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700543 = 109 ⋅6427.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345007 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 (345001) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 13257 + ... + 13282.

It is an arithmetic number, because the mean of its divisors is an integer number (92890).

2³⁴⁵⁰⁰⁷ is an apocalyptic number.

345007 is a deficient number, since it is larger than the sum of its proper divisors (26553).

345007 is a wasteful number, since it uses less digits than its factorization.

345007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26552.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 345007 is about 587.3729649890. The cubic root of 345007 is about 70.1362651801.

It can be divided in two parts, 34 and 5007, that added together give a square (5041 = 71²).

The spelling of 345007 in words is "three hundred forty-five thousand, seven".