89378838 has 24 divisors (see below), whose sum is σ = 194103000. Its totient is φ = 29723904.

The previous prime is 89378837. The next prime is 89378857. The reversal of 89378838 is 83887398.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89378833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2553 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (8087625).

Almost surely, 2^89378838 is an apocalyptic number.

89378838 is an abundant number, since it is smaller than the sum of its proper divisors (104724162).

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

89378838 is a wasteful number, since it uses less digits than its factorization.

89378838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11516 (or 11513 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 89378838 is about 9454.0381848182. The cubic root of 89378838 is about 447.1071016429.

The spelling of 89378838 in words is "eighty-nine million, three hundred seventy-eight thousand, eight hundred thirty-eight".