8378522 has 4 divisors (see below), whose sum is σ = 12567786. Its totient is φ = 4189260.

The previous prime is 8378521. The next prime is 8378561. The reversal of 8378522 is 2258738.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 1819801 = 2561^2 + 1349^2 .

It is not an unprimeable number, because it can be changed into a prime (8378521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2094629 + ... + 2094632.

Almost surely, 2^8378522 is an apocalyptic number.

8378522 is a deficient number, since it is larger than the sum of its proper divisors (4189264).

8378522 is a wasteful number, since it uses less digits than its factorization.

8378522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189263.

The product of its digits is 26880, while the sum is 35.

The square root of 8378522 is about 2894.5676706548. The cubic root of 8378522 is about 203.1058682415.

The spelling of 8378522 in words is "eight million, three hundred seventy-eight thousand, five hundred twenty-two".