696221 has 4 divisors (see below), whose sum is σ = 713244. Its totient is φ = 679200.

The previous prime is 696181. The next prime is 696239. The reversal of 696221 is 122696.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 376996 + 319225 = 614^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 696221 - 2¹⁴ = 679837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8450 + ... + 8531.

It is an arithmetic number, because the mean of its divisors is an integer number (178311).

2⁶⁹⁶²²¹ is an apocalyptic number.

It is an amenable number.

696221 is a deficient number, since it is larger than the sum of its proper divisors (17023).

696221 is a wasteful number, since it uses less digits than its factorization.

696221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17022.

The product of its digits is 1296, while the sum is 26.

The square root of 696221 is about 834.3985858090. The cubic root of 696221 is about 88.6303313409.

The spelling of 696221 in words is "six hundred ninety-six thousand, two hundred twenty-one".