9004378 has 4 divisors (see below), whose sum is σ = 13506570. Its totient is φ = 4502188.

The previous prime is 9004367. The next prime is 9004399. The reversal of 9004378 is 8734009.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8734009 = 1303 ⋅6703.

It can be written as a sum of positive squares in only one way, i.e., 8838729 + 165649 = 2973^2 + 407^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2251093 + ... + 2251096.

Almost surely, 2^9004378 is an apocalyptic number.

9004378 is a deficient number, since it is larger than the sum of its proper divisors (4502192).

9004378 is a wasteful number, since it uses less digits than its factorization.

9004378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502191.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 9004378 is about 3000.7295779527. The cubic root of 9004378 is about 208.0421050117.

The spelling of 9004378 in words is "nine million, four thousand, three hundred seventy-eight".