84128002 has 24 divisors (see below), whose sum is σ = 155432844. Its totient is φ = 33933312.

The previous prime is 84127999. The next prime is 84128059. The reversal of 84128002 is 20082148.

It can be written as a sum of positive squares in 2 ways, for example, as 83704201 + 423801 = 9149^2 + 651^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23583 + ... + 26914.

Almost surely, 2^84128002 is an apocalyptic number.

84128002 is a deficient number, since it is larger than the sum of its proper divisors (71304842).

84128002 is a wasteful number, since it uses less digits than its factorization.

84128002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50530 (or 50523 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 84128002 is about 9172.1318132700. The cubic root of 84128002 is about 438.1742563311.

The spelling of 84128002 in words is "eighty-four million, one hundred twenty-eight thousand, two".