84103128 has 48 divisors (see below), whose sum is σ = 228532200. Its totient is φ = 27941760.

The previous prime is 84103127. The next prime is 84103147. The reversal of 84103128 is 82130148.

It is a super-2 number, since 2×84103128² = 14146672278768768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84103127) 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, 22068 + ... + 25596.

Almost surely, 2^84103128 is an apocalyptic number.

It is an amenable number.

84103128 is an abundant number, since it is smaller than the sum of its proper divisors (144429072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84103128 is a wasteful number, since it uses less digits than its factorization.

84103128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872 (or 3865 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 84103128 is about 9170.7757578081. The cubic root of 84103128 is about 438.1310672995.

The spelling of 84103128 in words is "eighty-four million, one hundred three thousand, one hundred twenty-eight".