84124388 has 6 divisors (see below), whose sum is σ = 147217686. Its totient is φ = 42062192.

The previous prime is 84124387. The next prime is 84124393. The reversal of 84124388 is 88342148.

It can be written as a sum of positive squares in only one way, i.e., 82591744 + 1532644 = 9088^2 + 1238^2 .

It is not an unprimeable number, because it can be changed into a prime (84124387) 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, 10515545 + ... + 10515552.

It is an arithmetic number, because the mean of its divisors is an integer number (24536281).

Almost surely, 2^84124388 is an apocalyptic number.

It is an amenable number.

84124388 is a deficient number, since it is larger than the sum of its proper divisors (63093298).

84124388 is a wasteful number, since it uses less digits than its factorization.

84124388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031101 (or 21031099 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 84124388 is about 9171.9348013383. The cubic root of 84124388 is about 438.1679818272.

The spelling of 84124388 in words is "eighty-four million, one hundred twenty-four thousand, three hundred eighty-eight".