9881275 has 6 divisors (see below), whose sum is σ = 12252812. Its totient is φ = 7905000.

The previous prime is 9881269. The next prime is 9881279. The reversal of 9881275 is 5721889.

It is a de Polignac number, because none of the positive numbers 2^k-9881275 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9881279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197601 + ... + 197650.

Almost surely, 2^9881275 is an apocalyptic number.

9881275 is a deficient number, since it is larger than the sum of its proper divisors (2371537).

9881275 is a wasteful number, since it uses less digits than its factorization.

9881275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395261 (or 395256 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 9881275 is about 3143.4495383257. The cubic root of 9881275 is about 214.5874548072.

Subtracting from 9881275 its sum of digits (40), we obtain a triangular number (9881235 = T₄₄₄₅).

The spelling of 9881275 in words is "nine million, eight hundred eighty-one thousand, two hundred seventy-five".