83878396 has 18 divisors (see below), whose sum is σ = 170752848. Its totient is φ = 35947800.

The previous prime is 83878393. The next prime is 83878397. The reversal of 83878396 is 69387838.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83878393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213780 + ... + 214171.

Almost surely, 2^83878396 is an apocalyptic number.

It is an amenable number.

83878396 is an abundant number, since it is smaller than the sum of its proper divisors (86874452).

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

83878396 is a wasteful number, since it uses less digits than its factorization.

83878396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427969 (or 427960 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 83878396 is about 9158.5149451207. The cubic root of 83878396 is about 437.7404757961.

The spelling of 83878396 in words is "eighty-three million, eight hundred seventy-eight thousand, three hundred ninety-six".