697225 has 9 divisors (see below), whose sum is σ = 869767. Its totient is φ = 554440.

The previous prime is 697217. The next prime is 697259. The reversal of 697225 is 522796.

The square root of 697225 is 835.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 251001 + 446224 = 501^2 + 668^2 .

It is not a de Polignac number, because 697225 - 2³ = 697217 is a prime.

It is a super-2 number, since 2×697225² = 972245401250, which contains 22 as substring.

It is a Duffinian number.

697225 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4092 + ... + 4258.

697225 is a Friedman number, since it can be written as (29^2-6)^(7-5), using all its digits and the basic arithmetic operations.

2⁶⁹⁷²²⁵ is an apocalyptic number.

697225 is the 835-th square number.

697225 is the 418-th centered octagonal number.

It is an amenable number.

697225 is a deficient number, since it is larger than the sum of its proper divisors (172542).

697225 is an equidigital number, since it uses as much as digits as its factorization.

697225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 172 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The cubic root of 697225 is about 88.6729146168.

The spelling of 697225 in words is "six hundred ninety-seven thousand, two hundred twenty-five".