984686428 has 12 divisors (see below), whose sum is σ = 1879855992. Its totient is φ = 447584720.

The previous prime is 984686413. The next prime is 984686429. The reversal of 984686428 is 824686489.

It is a super-2 number, since 2×984686428² = 1939214722974798368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984686429) 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, 11189575 + ... + 11189662.

It is an arithmetic number, because the mean of its divisors is an integer number (156654666).

Almost surely, 2^984686428 is an apocalyptic number.

It is an amenable number.

984686428 is a deficient number, since it is larger than the sum of its proper divisors (895169564).

984686428 is a wasteful number, since it uses less digits than its factorization.

984686428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22379252 (or 22379250 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The square root of 984686428 is about 31379.7136379541. The cubic root of 984686428 is about 994.8691958721.

The spelling of 984686428 in words is "nine hundred eighty-four million, six hundred eighty-six thousand, four hundred twenty-eight".