697144 has 32 divisors (see below), whose sum is σ = 1526400. Its totient is φ = 292320.

The previous prime is 697141. The next prime is 697157. The reversal of 697144 is 441796.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3199 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (47700).

2⁶⁹⁷¹⁴⁴ 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 697144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763200).

697144 is an abundant number, since it is smaller than the sum of its proper divisors (829256).

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

697144 is a wasteful number, since it uses less digits than its factorization.

697144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 279 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 697144 is about 834.9514955972. The cubic root of 697144 is about 88.6694806300.

It can be divided in two parts, 697 and 144, that added together give a square (841 = 29²).

The spelling of 697144 in words is "six hundred ninety-seven thousand, one hundred forty-four".