982621 has 2 divisors, whose sum is σ = 982622. Its totient is φ = 982620.

The previous prime is 982613. The next prime is 982633. The reversal of 982621 is 126289.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657721 + 324900 = 811^2 + 570^2 .

It is a cyclic number.

It is not a de Polignac number, because 982621 - 2³ = 982613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 982621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (982021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491310 + 491311.

It is an arithmetic number, because the mean of its divisors is an integer number (491311).

2⁹⁸²⁶²¹ is an apocalyptic number.

It is an amenable number.

982621 is a deficient number, since it is larger than the sum of its proper divisors (1).

982621 is an equidigital number, since it uses as much as digits as its factorization.

982621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 982621 is about 991.2724146268. The cubic root of 982621 is about 99.4173113338.

The spelling of 982621 in words is "nine hundred eighty-two thousand, six hundred twenty-one".