697743 has 6 divisors (see below), whose sum is σ = 1007864. Its totient is φ = 465156.

The previous prime is 697733. The next prime is 697757. The reversal of 697743 is 347796.

It is not a de Polignac number, because 697743 - 2⁴ = 697727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 697698 and 697707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38755 + ... + 38772.

2⁶⁹⁷⁷⁴³ is an apocalyptic number.

697743 is a deficient number, since it is larger than the sum of its proper divisors (310121).

697743 is a wasteful number, since it uses less digits than its factorization.

697743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77533 (or 77530 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 697743 is about 835.3101220505. The cubic root of 697743 is about 88.6948688876.

The spelling of 697743 in words is "six hundred ninety-seven thousand, seven hundred forty-three".