9962891 has 2 divisors, whose sum is σ = 9962892. Its totient is φ = 9962890.

The previous prime is 9962857. The next prime is 9962893. The reversal of 9962891 is 1982699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9962891 - 2¹⁰ = 9961867 is a prime.

It is a Sophie Germain prime.

Together with 9962893, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9962893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4981445 + 4981446.

It is an arithmetic number, because the mean of its divisors is an integer number (4981446).

Almost surely, 2^9962891 is an apocalyptic number.

9962891 is a deficient number, since it is larger than the sum of its proper divisors (1).

9962891 is an equidigital number, since it uses as much as digits as its factorization.

9962891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 9962891 is about 3156.4047585821. The cubic root of 9962891 is about 215.1766422850.

The spelling of 9962891 in words is "nine million, nine hundred sixty-two thousand, eight hundred ninety-one".