687382303 has 2 divisors, whose sum is σ = 687382304. Its totient is φ = 687382302.

The previous prime is 687382291. The next prime is 687382307. The reversal of 687382303 is 303283786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 687382303 - 2⁵ = 687382271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (687382307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343691151 + 343691152.

It is an arithmetic number, because the mean of its divisors is an integer number (343691152).

Almost surely, 2^687382303 is an apocalyptic number.

687382303 is a deficient number, since it is larger than the sum of its proper divisors (1).

687382303 is an equidigital number, since it uses as much as digits as its factorization.

687382303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 687382303 is about 26217.9767144606. The cubic root of 687382303 is about 882.5367159380.

The spelling of 687382303 in words is "six hundred eighty-seven million, three hundred eighty-two thousand, three hundred three".