697734 has 40 divisors (see below), whose sum is σ = 1611720. Its totient is φ = 225504.

The previous prime is 697733. The next prime is 697757. The reversal of 697734 is 437796.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697734.

It is not an unprimeable number, because it can be changed into a prime (697733) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9522 + ... + 9594.

It is an arithmetic number, because the mean of its divisors is an integer number (40293).

2⁶⁹⁷⁷³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805860).

697734 is an abundant number, since it is smaller than the sum of its proper divisors (913986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697734 is a wasteful number, since it uses less digits than its factorization.

697734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 137 counting only the distinct ones).

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

The square root of 697734 is about 835.3047348124. The cubic root of 697734 is about 88.6944875355.

It can be divided in two parts, 697 and 734, that added together give a triangular number (1431 = T₅₃).

The spelling of 697734 in words is "six hundred ninety-seven thousand, seven hundred thirty-four".