702221 has 8 divisors (see below), whose sum is σ = 796320. Its totient is φ = 613872.

The previous prime is 702211. The next prime is 702239. The reversal of 702221 is 122207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-702221 is a prime.

It is a super-2 number, since 2×702221² = 986228665682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 702196 and 702205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (702211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (99540).

2⁷⁰²²²¹ is an apocalyptic number.

It is an amenable number.

702221 is a deficient number, since it is larger than the sum of its proper divisors (94099).

702221 is a wasteful number, since it uses less digits than its factorization.

702221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 702221 is about 837.9862767373. The cubic root of 702221 is about 88.8842074502.

Subtracting from 702221 its sum of digits (14), we obtain a palindrome (702207).

Adding to 702221 its reverse (122207), we get a palindrome (824428).

The spelling of 702221 in words is "seven hundred two thousand, two hundred twenty-one", and thus it is an iban number.