690530103 has 20 divisors (see below), whose sum is σ = 1037880888. Its totient is φ = 457520400.

The previous prime is 690530069. The next prime is 690530111. The reversal of 690530103 is 301035096.

690530103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 690530103 - 2⁶ = 690530039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690530003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12948 + ... + 39353.

Almost surely, 2^690530103 is an apocalyptic number.

690530103 is a deficient number, since it is larger than the sum of its proper divisors (347350785).

690530103 is a wasteful number, since it uses less digits than its factorization.

690530103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52476 (or 52467 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 690530103 is about 26277.9394740151. The cubic root of 690530103 is about 883.8818282657.

Adding to 690530103 its reverse (301035096), we get a palindrome (991565199).

The spelling of 690530103 in words is "six hundred ninety million, five hundred thirty thousand, one hundred three".