9998607 has 4 divisors (see below), whose sum is σ = 13331480. Its totient is φ = 6665736.

The previous prime is 9998603. The next prime is 9998623. The reversal of 9998607 is 7068999.

It is a happy number.

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

It is not a de Polignac number, because 9998607 - 2² = 9998603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998603) 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, 1666432 + ... + 1666437.

It is an arithmetic number, because the mean of its divisors is an integer number (3332870).

Almost surely, 2^9998607 is an apocalyptic number.

9998607 is a deficient number, since it is larger than the sum of its proper divisors (3332873).

9998607 is a wasteful number, since it uses less digits than its factorization.

9998607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332872.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9998607 is about 3162.0573998585. The cubic root of 9998607 is about 215.4334647802.

The spelling of 9998607 in words is "nine million, nine hundred ninety-eight thousand, six hundred seven".