8378436 has 24 divisors (see below), whose sum is σ = 21327264. Its totient is φ = 2538880.

The previous prime is 8378431. The next prime is 8378437. The reversal of 8378436 is 6348738.

It is a junction number, because it is equal to n+sod(n) for n = 8378394 and 8378403.

It is not an unprimeable number, because it can be changed into a prime (8378431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31605 + ... + 31868.

It is an arithmetic number, because the mean of its divisors is an integer number (888636).

Almost surely, 2^8378436 is an apocalyptic number.

It is an amenable number.

8378436 is an abundant number, since it is smaller than the sum of its proper divisors (12948828).

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

8378436 is a wasteful number, since it uses less digits than its factorization.

8378436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63491 (or 63489 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 8378436 is about 2894.5528152031. The cubic root of 8378436 is about 203.1051733232.

The spelling of 8378436 in words is "eight million, three hundred seventy-eight thousand, four hundred thirty-six".