690103 has 2 divisors, whose sum is σ = 690104. Its totient is φ = 690102.

The previous prime is 690089. The next prime is 690119. The reversal of 690103 is 301096.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690103 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345051 + 345052.

It is an arithmetic number, because the mean of its divisors is an integer number (345052).

2⁶⁹⁰¹⁰³ is an apocalyptic number.

690103 is a deficient number, since it is larger than the sum of its proper divisors (1).

690103 is an equidigital number, since it uses as much as digits as its factorization.

690103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 690103 is about 830.7243826926. The cubic root of 690103 is about 88.3699559389.

Adding to 690103 its reverse (301096), we get a palindrome (991199).

It can be divided in two parts, 6 and 90103, that added together give a palindrome (90109).

The spelling of 690103 in words is "six hundred ninety thousand, one hundred three".