697424 has 40 divisors (see below), whose sum is σ = 1666560. Its totient is φ = 275328.

The previous prime is 697423. The next prime is 697441. The reversal of 697424 is 424796.

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 697424.

It is not an unprimeable number, because it can be changed into a prime (697423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (41664).

2⁶⁹⁷⁴²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833280).

697424 is an abundant number, since it is smaller than the sum of its proper divisors (969136).

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

697424 is a wasteful number, since it uses less digits than its factorization.

697424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 501 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 697424 is about 835.1191531752. The cubic root of 697424 is about 88.6813500723.

The spelling of 697424 in words is "six hundred ninety-seven thousand, four hundred twenty-four".