9999698 has 4 divisors (see below), whose sum is σ = 14999550. Its totient is φ = 4999848.

The previous prime is 9999677. The next prime is 9999713. The reversal of 9999698 is 8969999.

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

It can be written as a sum of positive squares in only one way, i.e., 5303809 + 4695889 = 2303^2 + 2167^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499923 + ... + 2499926.

Almost surely, 2^9999698 is an apocalyptic number.

9999698 is a deficient number, since it is larger than the sum of its proper divisors (4999852).

9999698 is a wasteful number, since it uses less digits than its factorization.

9999698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999851.

The product of its digits is 2834352, while the sum is 59.

The square root of 9999698 is about 3162.2299094152. The cubic root of 9999698 is about 215.4413001838.

The spelling of 9999698 in words is "nine million, nine hundred ninety-nine thousand, six hundred ninety-eight".