9912961 has 6 divisors (see below), whose sum is σ = 10106390. Its totient is φ = 9723168.

The previous prime is 9912943. The next prime is 9912967. The reversal of 9912961 is 1692199.

It can be written as a sum of positive squares in 3 ways, for example, as 1392400 + 8520561 = 1180^2 + 2919^2 .

It is not a de Polignac number, because 9912961 - 2¹⁵ = 9880193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9912961.

It is not an unprimeable number, because it can be changed into a prime (9912967) 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, 1045 + ... + 4573.

Almost surely, 2^9912961 is an apocalyptic number.

It is an amenable number.

9912961 is a deficient number, since it is larger than the sum of its proper divisors (193429).

9912961 is an equidigital number, since it uses as much as digits as its factorization.

9912961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3582 counting only the distinct ones).

The product of its digits is 8748, while the sum is 37.

The square root of 9912961 is about 3148.4855089392. The cubic root of 9912961 is about 214.8165805418.

The spelling of 9912961 in words is "nine million, nine hundred twelve thousand, nine hundred sixty-one".