84086928 has 30 divisors (see below), whose sum is σ = 235327014. Its totient is φ = 28028928.

The previous prime is 84086927. The next prime is 84086939. The reversal of 84086928 is 82968048.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59166864 + 24920064 = 7692^2 + 4992^2 .

It is a super-2 number, since 2×84086928² = 14141222920954368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84086923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 291825 + ... + 292112.

Almost surely, 2^84086928 is an apocalyptic number.

It is an amenable number.

84086928 is an abundant number, since it is smaller than the sum of its proper divisors (151240086).

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

84086928 is a wasteful number, since it uses less digits than its factorization.

84086928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583951 (or 583942 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 84086928 is about 9169.8924748331. The cubic root of 84086928 is about 438.1029344614.

The spelling of 84086928 in words is "eighty-four million, eighty-six thousand, nine hundred twenty-eight".