683887 has 2 divisors, whose sum is σ = 683888. Its totient is φ = 683886.

The previous prime is 683873. The next prime is 683899. The reversal of 683887 is 788386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 683887 - 2⁷ = 683759 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341943 + 341944.

It is an arithmetic number, because the mean of its divisors is an integer number (341944).

2⁶⁸³⁸⁸⁷ is an apocalyptic number.

683887 is a deficient number, since it is larger than the sum of its proper divisors (1).

683887 is an equidigital number, since it uses as much as digits as its factorization.

683887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 683887 is about 826.9746066234. The cubic root of 683887 is about 88.1038288931.

The spelling of 683887 in words is "six hundred eighty-three thousand, eight hundred eighty-seven".