9998457313 has 8 divisors (see below), whose sum is σ = 10888554600. Its totient is φ = 9125643648.

The previous prime is 9998457277. The next prime is 9998457317. The reversal of 9998457313 is 3137548999.

It can be written as a sum of positive squares in 4 ways, for example, as 143328784 + 9855128529 = 11972^2 + 99273^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9998457313 - 2¹³ = 9998449121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9998457317) 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, 4319698 + ... + 4322011.

It is an arithmetic number, because the mean of its divisors is an integer number (1361069325).

Almost surely, 2^9998457313 is an apocalyptic number.

It is an amenable number.

9998457313 is a deficient number, since it is larger than the sum of its proper divisors (890097287).

9998457313 is a wasteful number, since it uses less digits than its factorization.

9998457313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641811.

The product of its digits is 7348320, while the sum is 58.

The square root of 9998457313 is about 99992.2862674917. The cubic root of 9998457313 is about 2154.3238970548.

The spelling of 9998457313 in words is "nine billion, nine hundred ninety-eight million, four hundred fifty-seven thousand, three hundred thirteen".