84168452 has 24 divisors (see below), whose sum is σ = 151658136. Its totient is φ = 40854528.

The previous prime is 84168437. The next prime is 84168481. The reversal of 84168452 is 25486148.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15178816 + 68989636 = 3896^2 + 8306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18518 + ... + 22610.

It is an arithmetic number, because the mean of its divisors is an integer number (6319089).

Almost surely, 2^84168452 is an apocalyptic number.

It is an amenable number.

84168452 is a deficient number, since it is larger than the sum of its proper divisors (67489684).

84168452 is a wasteful number, since it uses less digits than its factorization.

84168452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247 (or 4245 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 84168452 is about 9174.3365972696. The cubic root of 84168452 is about 438.2444719879.

The spelling of 84168452 in words is "eighty-four million, one hundred sixty-eight thousand, four hundred fifty-two".