340783 has 4 divisors (see below), whose sum is σ = 351808. Its totient is φ = 329760.

The previous prime is 340777. The next prime is 340787. The reversal of 340783 is 387043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387043 = 43 ⋅9001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340783 is a prime.

It is a super-2 number, since 2×340783² = 232266106178, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340787) 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, 5466 + ... + 5527.

It is an arithmetic number, because the mean of its divisors is an integer number (87952).

2³⁴⁰⁷⁸³ is an apocalyptic number.

340783 is a deficient number, since it is larger than the sum of its proper divisors (11025).

340783 is a wasteful number, since it uses less digits than its factorization.

340783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 340783 is about 583.7662203314. The cubic root of 340783 is about 69.8488575650.

The spelling of 340783 in words is "three hundred forty thousand, seven hundred eighty-three".