687628583 has 2 divisors, whose sum is σ = 687628584. Its totient is φ = 687628582.

The previous prime is 687628567. The next prime is 687628603. The reversal of 687628583 is 385826786.

687628583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 687628583 - 2⁴ = 687628567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687628553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343814291 + 343814292.

It is an arithmetic number, because the mean of its divisors is an integer number (343814292).

Almost surely, 2^687628583 is an apocalyptic number.

687628583 is a deficient number, since it is larger than the sum of its proper divisors (1).

687628583 is an equidigital number, since it uses as much as digits as its factorization.

687628583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 53.

The square root of 687628583 is about 26222.6730712183. The cubic root of 687628583 is about 882.6421037688.

The spelling of 687628583 in words is "six hundred eighty-seven million, six hundred twenty-eight thousand, five hundred eighty-three".