976221 has 12 divisors (see below), whose sum is σ = 1456000. Its totient is φ = 629640.

The previous prime is 976211. The next prime is 976231. The reversal of 976221 is 122679.

It is an interprime number because it is at equal distance from previous prime (976211) and next prime (976231).

It is not a de Polignac number, because 976221 - 2⁷ = 976093 is a prime.

It is a Duffinian number.

976221 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (976211) 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 11 ways as a sum of consecutive naturals, for example, 1471 + ... + 2028.

2⁹⁷⁶²²¹ is an apocalyptic number.

It is an amenable number.

976221 is a deficient number, since it is larger than the sum of its proper divisors (479779).

976221 is a wasteful number, since it uses less digits than its factorization.

976221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536 (or 3533 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 976221 is about 988.0389668429. The cubic root of 976221 is about 99.2009996539.

The spelling of 976221 in words is "nine hundred seventy-six thousand, two hundred twenty-one".