9900554 has 8 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 4866316.

The previous prime is 9900547. The next prime is 9900589. The reversal of 9900554 is 4550099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9900554.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41834 + ... + 42069.

It is an arithmetic number, because the mean of its divisors is an integer number (1887840).

Almost surely, 2^9900554 is an apocalyptic number.

9900554 is a deficient number, since it is larger than the sum of its proper divisors (5202166).

9900554 is a wasteful number, since it uses less digits than its factorization.

9900554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83964.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 9900554 is about 3146.5145796579. The cubic root of 9900554 is about 214.7269220964.

The spelling of 9900554 in words is "nine million, nine hundred thousand, five hundred fifty-four".