402683 has 4 divisors (see below), whose sum is σ = 405720. Its totient is φ = 399648.

The previous prime is 402631. The next prime is 402691. The reversal of 402683 is 386204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402683 - 2¹⁴ = 386299 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402613) 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, 1310 + ... + 1587.

It is an arithmetic number, because the mean of its divisors is an integer number (101430).

2⁴⁰²⁶⁸³ is an apocalyptic number.

402683 is a deficient number, since it is larger than the sum of its proper divisors (3037).

402683 is a wasteful number, since it uses less digits than its factorization.

402683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 402683 is about 634.5730848374. The cubic root of 402683 is about 73.8450006219.

Adding to 402683 its reverse (386204), we get a palindrome (788887).

The spelling of 402683 in words is "four hundred two thousand, six hundred eighty-three".