9998057 has 4 divisors (see below), whose sum is σ = 10586196. Its totient is φ = 9409920.

The previous prime is 9998033. The next prime is 9998099. The reversal of 9998057 is 7508999.

9998057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5456896 + 4541161 = 2336^2 + 2131^2 .

It is a cyclic number.

It is not a de Polignac number, because 9998057 - 2¹⁰ = 9997033 is a prime.

It is a super-2 number, since 2×9998057² = 199922287550498, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9998017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294044 + ... + 294077.

It is an arithmetic number, because the mean of its divisors is an integer number (2646549).

Almost surely, 2^9998057 is an apocalyptic number.

It is an amenable number.

9998057 is a deficient number, since it is larger than the sum of its proper divisors (588139).

9998057 is a wasteful number, since it uses less digits than its factorization.

9998057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588138.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 9998057 is about 3161.9704299693. The cubic root of 9998057 is about 215.4295145440.

The spelling of 9998057 in words is "nine million, nine hundred ninety-eight thousand, fifty-seven".