9278272 has 14 divisors (see below), whose sum is σ = 18411698. Its totient is φ = 4639104.

The previous prime is 9278267. The next prime is 9278279. The reversal of 9278272 is 2728729.

It can be written as a sum of positive squares in only one way, i.e., 5683456 + 3594816 = 2384^2 + 1896^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9278279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72423 + ... + 72550.

Almost surely, 2^9278272 is an apocalyptic number.

It is an amenable number.

9278272 is a deficient number, since it is larger than the sum of its proper divisors (9133426).

9278272 is a wasteful number, since it uses less digits than its factorization.

9278272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144985 (or 144975 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 9278272 is about 3046.0256072463. The cubic root of 9278272 is about 210.1304706995.

The spelling of 9278272 in words is "nine million, two hundred seventy-eight thousand, two hundred seventy-two".