690541703 has 2 divisors, whose sum is σ = 690541704. Its totient is φ = 690541702.

The previous prime is 690541697. The next prime is 690541759. The reversal of 690541703 is 307145096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 690541703 - 2¹² = 690537607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690541763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345270851 + 345270852.

It is an arithmetic number, because the mean of its divisors is an integer number (345270852).

Almost surely, 2^690541703 is an apocalyptic number.

690541703 is a deficient number, since it is larger than the sum of its proper divisors (1).

690541703 is an equidigital number, since it uses as much as digits as its factorization.

690541703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 690541703 is about 26278.1601905461. The cubic root of 690541703 is about 883.8867775898.

Adding to 690541703 its reverse (307145096), we get a palindrome (997686799).

The spelling of 690541703 in words is "six hundred ninety million, five hundred forty-one thousand, seven hundred three".