9961275 has 12 divisors (see below), whose sum is σ = 16469432. Its totient is φ = 5312640.

The previous prime is 9961267. The next prime is 9961279. The reversal of 9961275 is 5721699.

It is not a de Polignac number, because 9961275 - 2³ = 9961267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9961279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66334 + ... + 66483.

Almost surely, 2^9961275 is an apocalyptic number.

9961275 is a deficient number, since it is larger than the sum of its proper divisors (6508157).

9961275 is a wasteful number, since it uses less digits than its factorization.

9961275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132830 (or 132825 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The square root of 9961275 is about 3156.1487607526. The cubic root of 9961275 is about 215.1650076348.

The spelling of 9961275 in words is "nine million, nine hundred sixty-one thousand, two hundred seventy-five".