345387 has 8 divisors (see below), whose sum is σ = 526336. Its totient is φ = 197352.

The previous prime is 345379. The next prime is 345413. The reversal of 345387 is 783543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345387 - 2³ = 345379 is a prime.

It is an Ulam number.

It is a Duffinian number.

345387 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345387.

It is not an unprimeable number, because it can be changed into a prime (345307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8203 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (65792).

2³⁴⁵³⁸⁷ is an apocalyptic number.

345387 is a deficient number, since it is larger than the sum of its proper divisors (180949).

345387 is a wasteful number, since it uses less digits than its factorization.

345387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16457.

The product of its digits is 10080, while the sum is 30.

The square root of 345387 is about 587.6963501673. The cubic root of 345387 is about 70.1620057224.

It can be divided in two parts, 3 and 45387, that multiplied together give a square (136161 = 369²).

The spelling of 345387 in words is "three hundred forty-five thousand, three hundred eighty-seven".