7875378 has 36 divisors (see below), whose sum is σ = 19851390. Its totient is φ = 2249856.

The previous prime is 7875377. The next prime is 7875389. The reversal of 7875378 is 8735787.

It can be written as a sum of positive squares in only one way, i.e., 7800849 + 74529 = 2793^2 + 273^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7875377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3583 + ... + 5346.

Almost surely, 2^7875378 is an apocalyptic number.

7875378 is an abundant number, since it is smaller than the sum of its proper divisors (11976012).

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

7875378 is a wasteful number, since it uses less digits than its factorization.

7875378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951 (or 8941 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 7875378 is about 2806.3103891052. The cubic root of 7875378 is about 198.9560435897.

The spelling of 7875378 in words is "seven million, eight hundred seventy-five thousand, three hundred seventy-eight".