9953998 has 4 divisors (see below), whose sum is σ = 14931000. Its totient is φ = 4976998.

The previous prime is 9953953. The next prime is 9954001. The reversal of 9953998 is 8993599.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2488498 + ... + 2488501.

It is an arithmetic number, because the mean of its divisors is an integer number (3732750).

Almost surely, 2^9953998 is an apocalyptic number.

9953998 is a deficient number, since it is larger than the sum of its proper divisors (4977002).

9953998 is a wasteful number, since it uses less digits than its factorization.

9953998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977001.

The product of its digits is 787320, while the sum is 52.

The square root of 9953998 is about 3154.9957210748. The cubic root of 9953998 is about 215.1126001136.

The spelling of 9953998 in words is "nine million, nine hundred fifty-three thousand, nine hundred ninety-eight".