697673 has 2 divisors, whose sum is σ = 697674. Its totient is φ = 697672.

The previous prime is 697643. The next prime is 697681. The reversal of 697673 is 376796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 620944 + 76729 = 788^2 + 277^2 .

697673 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 697673 - 2¹⁸ = 435529 is a prime.

It is a super-2 number, since 2×697673² = 973495229858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697673.

It is not a weakly prime, because it can be changed into another prime (697603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348836 + 348837.

It is an arithmetic number, because the mean of its divisors is an integer number (348837).

2⁶⁹⁷⁶⁷³ is an apocalyptic number.

It is an amenable number.

697673 is a deficient number, since it is larger than the sum of its proper divisors (1).

697673 is an equidigital number, since it uses as much as digits as its factorization.

697673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 697673 is about 835.2682203939. The cubic root of 697673 is about 88.6919027293.

It can be divided in two parts, 6 and 97673, that added together give a palindrome (97679).

The spelling of 697673 in words is "six hundred ninety-seven thousand, six hundred seventy-three".