340677 has 6 divisors (see below), whose sum is σ = 492102. Its totient is φ = 227112.

The previous prime is 340661. The next prime is 340687. The reversal of 340677 is 776043.

It can be written as a sum of positive squares in only one way, i.e., 181476 + 159201 = 426^2 + 399^2 .

It is not a de Polignac number, because 340677 - 2⁴ = 340661 is a prime.

340677 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 340677.

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 340677.

It is not an unprimeable number, because it can be changed into a prime (340657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18918 + ... + 18935.

It is an arithmetic number, because the mean of its divisors is an integer number (82017).

2³⁴⁰⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

340677 is a deficient number, since it is larger than the sum of its proper divisors (151425).

340677 is a wasteful number, since it uses less digits than its factorization.

340677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37859 (or 37856 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 340677 is about 583.6754235018. The cubic root of 340677 is about 69.8416146893.

It can be divided in two parts, 3406 and 77, that multiplied together give a palindrome (262262).

The spelling of 340677 in words is "three hundred forty thousand, six hundred seventy-seven".