9955642 has 32 divisors (see below), whose sum is σ = 17107200. Its totient is φ = 4316928.

The previous prime is 9955637. The next prime is 9955643. The reversal of 9955642 is 2465599.

It is a super-2 number, since 2×9955642² = 198229615264328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9955595 and 9955604.

It is not an unprimeable number, because it can be changed into a prime (9955643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22459 + ... + 22897.

It is an arithmetic number, because the mean of its divisors is an integer number (534600).

Almost surely, 2^9955642 is an apocalyptic number.

9955642 is a deficient number, since it is larger than the sum of its proper divisors (7151558).

9955642 is a wasteful number, since it uses less digits than its factorization.

9955642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510.

The product of its digits is 97200, while the sum is 40.

The square root of 9955642 is about 3155.2562494986. The cubic root of 9955642 is about 215.1244421107.

The spelling of 9955642 in words is "nine million, nine hundred fifty-five thousand, six hundred forty-two".