84132028 has 6 divisors (see below), whose sum is σ = 147231056. Its totient is φ = 42066012.

The previous prime is 84132023. The next prime is 84132071. The reversal of 84132028 is 82023148.

It is a junction number, because it is equal to n+sod(n) for n = 84131987 and 84132005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84132023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516500 + ... + 10516507.

Almost surely, 2^84132028 is an apocalyptic number.

It is an amenable number.

84132028 is a deficient number, since it is larger than the sum of its proper divisors (63099028).

84132028 is a wasteful number, since it uses less digits than its factorization.

84132028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21033011 (or 21033009 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 84132028 is about 9172.3512797973. The cubic root of 84132028 is about 438.1812459238.

It can be divided in two parts, 8413202 and 8, that multiplied together give a square (67305616 = 8204²).

The spelling of 84132028 in words is "eighty-four million, one hundred thirty-two thousand, twenty-eight".