9998748 has 24 divisors (see below), whose sum is σ = 25922960. Its totient is φ = 3332880.

The previous prime is 9998743. The next prime is 9998749. The reversal of 9998748 is 8478999.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9998694 and 9998703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46183 + ... + 46398.

Almost surely, 2^9998748 is an apocalyptic number.

It is an amenable number.

9998748 is an abundant number, since it is smaller than the sum of its proper divisors (15924212).

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

9998748 is a wasteful number, since it uses less digits than its factorization.

9998748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92594 (or 92586 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 9998748 is about 3162.0796953904. The cubic root of 9998748 is about 215.4344774538.

The spelling of 9998748 in words is "nine million, nine hundred ninety-eight thousand, seven hundred forty-eight".