9961423 has 4 divisors (see below), whose sum is σ = 10193128. Its totient is φ = 9729720.

The previous prime is 9961421. The next prime is 9961429. The reversal of 9961423 is 3241699.

9961423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9961423 - 2¹ = 9961421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115788 + ... + 115873.

It is an arithmetic number, because the mean of its divisors is an integer number (2548282).

Almost surely, 2^9961423 is an apocalyptic number.

9961423 is a deficient number, since it is larger than the sum of its proper divisors (231705).

9961423 is a wasteful number, since it uses less digits than its factorization.

9961423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231704.

The product of its digits is 11664, while the sum is 34.

The square root of 9961423 is about 3156.1722069621. The cubic root of 9961423 is about 215.1660732368.

The spelling of 9961423 in words is "nine million, nine hundred sixty-one thousand, four hundred twenty-three".