345377 has 4 divisors (see below), whose sum is σ = 348036. Its totient is φ = 342720.

The previous prime is 345329. The next prime is 345379. The reversal of 345377 is 773543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773543 = 31 ⋅24953.

It can be written as a sum of positive squares in 2 ways, for example, as 65536 + 279841 = 256^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 345377 - 2¹⁰ = 344353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345377.

It is not an unprimeable number, because it can be changed into a prime (345379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (87009).

2³⁴⁵³⁷⁷ is an apocalyptic number.

It is an amenable number.

345377 is a deficient number, since it is larger than the sum of its proper divisors (2659).

345377 is a wasteful number, since it uses less digits than its factorization.

345377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its digits is 8820, while the sum is 29.

The square root of 345377 is about 587.6878423109. The cubic root of 345377 is about 70.1613285816.

The spelling of 345377 in words is "three hundred forty-five thousand, three hundred seventy-seven".