9278988 has 12 divisors (see below), whose sum is σ = 21651000. Its totient is φ = 3092992.

The previous prime is 9278987. The next prime is 9278993. The reversal of 9278988 is 8898729.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 9278988.

It is not an unprimeable number, because it can be changed into a prime (9278987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386613 + ... + 386636.

It is an arithmetic number, because the mean of its divisors is an integer number (1804250).

Almost surely, 2^9278988 is an apocalyptic number.

It is an amenable number.

9278988 is an abundant number, since it is smaller than the sum of its proper divisors (12372012).

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

9278988 is a wasteful number, since it uses less digits than its factorization.

9278988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773256 (or 773254 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 9278988 is about 3046.1431351793. The cubic root of 9278988 is about 210.1358757845.

The spelling of 9278988 in words is "nine million, two hundred seventy-eight thousand, nine hundred eighty-eight".