84169438 has 16 divisors (see below), whose sum is σ = 128671200. Its totient is φ = 41285376.

The previous prime is 84169429. The next prime is 84169439. The reversal of 84169438 is 83496148.

It is a junction number, because it is equal to n+sod(n) for n = 84169394 and 84169403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84169439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27606 + ... + 30502.

It is an arithmetic number, because the mean of its divisors is an integer number (8041950).

Almost surely, 2^84169438 is an apocalyptic number.

84169438 is a deficient number, since it is larger than the sum of its proper divisors (44501762).

84169438 is a wasteful number, since it uses less digits than its factorization.

84169438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171.

The product of its digits is 165888, while the sum is 43.

The square root of 84169438 is about 9174.3903339677. The cubic root of 84169438 is about 438.2461832679.

The spelling of 84169438 in words is "eighty-four million, one hundred sixty-nine thousand, four hundred thirty-eight".