8378456 has 8 divisors (see below), whose sum is σ = 15709620. Its totient is φ = 4189224.

The previous prime is 8378437. The next prime is 8378479. The reversal of 8378456 is 6548738.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523646 + ... + 523661.

Almost surely, 2^8378456 is an apocalyptic number.

It is an amenable number.

8378456 is a deficient number, since it is larger than the sum of its proper divisors (7331164).

8378456 is a wasteful number, since it uses less digits than its factorization.

8378456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047313 (or 1047309 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 8378456 is about 2894.5562699661. The cubic root of 8378456 is about 203.1053349325.

The spelling of 8378456 in words is "eight million, three hundred seventy-eight thousand, four hundred fifty-six".