697603 has 2 divisors, whose sum is σ = 697604. Its totient is φ = 697602.

The previous prime is 697601. The next prime is 697637. The reversal of 697603 is 306796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697603 - 2¹ = 697601 is a prime.

Together with 697601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (697601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348801 + 348802.

It is an arithmetic number, because the mean of its divisors is an integer number (348802).

2⁶⁹⁷⁶⁰³ is an apocalyptic number.

697603 is a deficient number, since it is larger than the sum of its proper divisors (1).

697603 is an equidigital number, since it uses as much as digits as its factorization.

697603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 697603 is about 835.2263166352. The cubic root of 697603 is about 88.6889363727.

Adding to 697603 its product of nonzero digits (6804), we get a palindrome (704407).

The spelling of 697603 in words is "six hundred ninety-seven thousand, six hundred three".