688463603 has 10 divisors (see below), whose sum is σ = 731580804. Its totient is φ = 647887136.

The previous prime is 688463597. The next prime is 688463627. The reversal of 688463603 is 306364886.

688463603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-688463603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688462603) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79400 + ... + 87642.

Almost surely, 2^688463603 is an apocalyptic number.

688463603 is a deficient number, since it is larger than the sum of its proper divisors (43117201).

688463603 is an frugal number, since it uses more digits than its factorization.

688463603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8311 (or 8260 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 688463603 is about 26238.5899583038. The cubic root of 688463603 is about 882.9992373021. Note that the first 3 decimals are identical.

The spelling of 688463603 in words is "six hundred eighty-eight million, four hundred sixty-three thousand, six hundred three".