9278081 has 8 divisors (see below), whose sum is σ = 9479400. Its totient is φ = 9078912.

The previous prime is 9278069. The next prime is 9278117. The reversal of 9278081 is 1808729.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36481 + 9241600 = 191^2 + 3040^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9278081 is a prime.

It is a super-2 number, since 2×9278081² = 172165574085122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9278041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10451 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (1184925).

Almost surely, 2^9278081 is an apocalyptic number.

It is an amenable number.

9278081 is a deficient number, since it is larger than the sum of its proper divisors (201319).

9278081 is a wasteful number, since it uses less digits than its factorization.

9278081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 9278081 is about 3045.9942547549. The cubic root of 9278081 is about 210.1290287932.

Adding to 9278081 its sum of digits (35), we get a square (9278116 = 3046²).

The spelling of 9278081 in words is "nine million, two hundred seventy-eight thousand, eighty-one".