9906402 has 16 divisors (see below), whose sum is σ = 21614112. Its totient is φ = 3001920.

The previous prime is 9906401. The next prime is 9906439. The reversal of 9906402 is 2046099.

It is a self number, because there is not a number n which added to its sum of digits gives 9906402.

It is not an unprimeable number, because it can be changed into a prime (9906401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74983 + ... + 75114.

It is an arithmetic number, because the mean of its divisors is an integer number (1350882).

Almost surely, 2^9906402 is an apocalyptic number.

9906402 is an abundant number, since it is smaller than the sum of its proper divisors (11707710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9906402 is a wasteful number, since it uses less digits than its factorization.

9906402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150113.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 9906402 is about 3147.4437246756. The cubic root of 9906402 is about 214.7691916462.

The spelling of 9906402 in words is "nine million, nine hundred six thousand, four hundred two".