982825643 has 4 divisors (see below), whose sum is σ = 1014529728. Its totient is φ = 951121560.

The previous prime is 982825619. The next prime is 982825661. The reversal of 982825643 is 346528289.

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

It is a cyclic number.

It is not a de Polignac number, because 982825643 - 2⁶ = 982825579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (982825343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15851996 + ... + 15852057.

It is an arithmetic number, because the mean of its divisors is an integer number (253632432).

Almost surely, 2^982825643 is an apocalyptic number.

982825643 is a deficient number, since it is larger than the sum of its proper divisors (31704085).

982825643 is a wasteful number, since it uses less digits than its factorization.

982825643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31704084.

The product of its digits is 829440, while the sum is 47.

The square root of 982825643 is about 31350.0501275516. The cubic root of 982825643 is about 994.2421248375.

The spelling of 982825643 in words is "nine hundred eighty-two million, eight hundred twenty-five thousand, six hundred forty-three".