697632 has 72 divisors (see below), whose sum is σ = 2029104. Its totient is φ = 209664.

The previous prime is 697603. The next prime is 697637. The reversal of 697632 is 236796.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 697593 and 697602.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697632.

It is not an unprimeable number, because it can be changed into a prime (697637) 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 11 ways as a sum of consecutive naturals, for example, 16203 + ... + 16245.

It is an arithmetic number, because the mean of its divisors is an integer number (28182).

2⁶⁹⁷⁶³² 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 697632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014552).

697632 is an abundant number, since it is smaller than the sum of its proper divisors (1331472).

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

697632 is a wasteful number, since it uses less digits than its factorization.

697632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 61 counting only the distinct ones).

The product of its digits is 13608, while the sum is 33.

The square root of 697632 is about 835.2436770189. The cubic root of 697632 is about 88.6901653159.

The spelling of 697632 in words is "six hundred ninety-seven thousand, six hundred thirty-two".