687228203 has 2 divisors, whose sum is σ = 687228204. Its totient is φ = 687228202.

The previous prime is 687228197. The next prime is 687228209. The reversal of 687228203 is 302822786.

687228203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (687228197) and next prime (687228209).

It is a cyclic number.

It is not a de Polignac number, because 687228203 - 2⁴ = 687228187 is a prime.

It is not a weakly prime, because it can be changed into another prime (687228209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343614101 + 343614102.

It is an arithmetic number, because the mean of its divisors is an integer number (343614102).

Almost surely, 2^687228203 is an apocalyptic number.

687228203 is a deficient number, since it is larger than the sum of its proper divisors (1).

687228203 is an equidigital number, since it uses as much as digits as its factorization.

687228203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 687228203 is about 26215.0377264653. The cubic root of 687228203 is about 882.4707608542.

The spelling of 687228203 in words is "six hundred eighty-seven million, two hundred twenty-eight thousand, two hundred three".