9961406 has 32 divisors (see below), whose sum is σ = 18782400. Its totient is φ = 3937248.

The previous prime is 9961397. The next prime is 9961421. The reversal of 9961406 is 6041699.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8360 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (586950).

Almost surely, 2^9961406 is an apocalyptic number.

9961406 is a deficient number, since it is larger than the sum of its proper divisors (8820994).

9961406 is a wasteful number, since it uses less digits than its factorization.

9961406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 9961406 is about 3156.1695138253. The cubic root of 9961406 is about 215.1659508371.

The spelling of 9961406 in words is "nine million, nine hundred sixty-one thousand, four hundred six".