84374838 has 64 divisors (see below), whose sum is σ = 193881600. Its totient is φ = 27185760.

The previous prime is 84374827. The next prime is 84374867. The reversal of 84374838 is 83847348.

It is a happy number.

It is a super-2 number, since 2×84374838² = 14238226575052488, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84374793 and 84374802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226020 + ... + 226392.

It is an arithmetic number, because the mean of its divisors is an integer number (3029400).

Almost surely, 2^84374838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84374838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96940800).

84374838 is an abundant number, since it is smaller than the sum of its proper divisors (109506762).

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

84374838 is a wasteful number, since it uses less digits than its factorization.

84374838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 84374838 is about 9185.5777172696. The cubic root of 84374838 is about 438.6023800260.

The spelling of 84374838 in words is "eighty-four million, three hundred seventy-four thousand, eight hundred thirty-eight".