9699873 has 4 divisors (see below), whose sum is σ = 12933168. Its totient is φ = 6466580.

The previous prime is 9699853. The next prime is 9699887. The reversal of 9699873 is 3789969.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3789969 = 3 ⋅1263323.

It is a cyclic number.

It is not a de Polignac number, because 9699873 - 2⁵ = 9699841 is a prime.

It is a super-2 number, since 2×9699873² = 188175072432258, which contains 22 as substring.

It is a Curzon number.

9699873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9699803) 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, 1616643 + ... + 1616648.

It is an arithmetic number, because the mean of its divisors is an integer number (3233292).

Almost surely, 2^9699873 is an apocalyptic number.

It is an amenable number.

9699873 is a deficient number, since it is larger than the sum of its proper divisors (3233295).

9699873 is a wasteful number, since it uses less digits than its factorization.

9699873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233294.

The product of its digits is 734832, while the sum is 51.

The square root of 9699873 is about 3114.4619117915. The cubic root of 9699873 is about 213.2661927931.

The spelling of 9699873 in words is "nine million, six hundred ninety-nine thousand, eight hundred seventy-three".