84118228 has 6 divisors (see below), whose sum is σ = 147206906. Its totient is φ = 42059112.

The previous prime is 84118211. The next prime is 84118253. The reversal of 84118228 is 82281148.

It can be written as a sum of positive squares in only one way, i.e., 60186564 + 23931664 = 7758^2 + 4892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84118193 and 84118202.

It is a congruent number.

It is an unprimeable number.

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, 10514775 + ... + 10514782.

Almost surely, 2^84118228 is an apocalyptic number.

It is an amenable number.

84118228 is a deficient number, since it is larger than the sum of its proper divisors (63088678).

84118228 is a wasteful number, since it uses less digits than its factorization.

84118228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21029561 (or 21029559 counting only the distinct ones).

The product of its digits is 8192, while the sum is 34.

The square root of 84118228 is about 9171.5989881809. The cubic root of 84118228 is about 438.1572866304.

The spelling of 84118228 in words is "eighty-four million, one hundred eighteen thousand, two hundred twenty-eight".