982945821 has 32 divisors (see below), whose sum is σ = 1547159040. Its totient is φ = 547243200.

The previous prime is 982945813. The next prime is 982945823. The reversal of 982945821 is 128549289.

It is not a de Polignac number, because 982945821 - 2³ = 982945813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982945823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85090 + ... + 95948.

It is an arithmetic number, because the mean of its divisors is an integer number (48348720).

Almost surely, 2^982945821 is an apocalyptic number.

It is an amenable number.

982945821 is a deficient number, since it is larger than the sum of its proper divisors (564213219).

982945821 is a wasteful number, since it uses less digits than its factorization.

982945821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11097.

The product of its digits is 414720, while the sum is 48.

The square root of 982945821 is about 31351.9667804111. The cubic root of 982945821 is about 994.2826478475.

The spelling of 982945821 in words is "nine hundred eighty-two million, nine hundred forty-five thousand, eight hundred twenty-one".