686481203 has 2 divisors, whose sum is σ = 686481204. Its totient is φ = 686481202.

The previous prime is 686481149. The next prime is 686481221. The reversal of 686481203 is 302184686.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 686481203 - 2⁶ = 686481139 is a prime.

It is not a weakly prime, because it can be changed into another prime (686481223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343240601 + 343240602.

It is an arithmetic number, because the mean of its divisors is an integer number (343240602).

Almost surely, 2^686481203 is an apocalyptic number.

686481203 is a deficient number, since it is larger than the sum of its proper divisors (1).

686481203 is an equidigital number, since it uses as much as digits as its factorization.

686481203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 686481203 is about 26200.7863049947. The cubic root of 686481203 is about 882.1509036624.

The spelling of 686481203 in words is "six hundred eighty-six million, four hundred eighty-one thousand, two hundred three".