9747899 has 4 divisors (see below), whose sum is σ = 11140464. Its totient is φ = 8355336.

The previous prime is 9747863. The next prime is 9747901. The reversal of 9747899 is 9987479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9987479 = 53 ⋅188443.

It is a cyclic number.

It is not a de Polignac number, because 9747899 - 2⁸ = 9747643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9747899.

It is not an unprimeable number, because it can be changed into a prime (9747839) 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, 696272 + ... + 696285.

It is an arithmetic number, because the mean of its divisors is an integer number (2785116).

Almost surely, 2^9747899 is an apocalyptic number.

9747899 is a deficient number, since it is larger than the sum of its proper divisors (1392565).

9747899 is a wasteful number, since it uses less digits than its factorization.

9747899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392564.

The product of its digits is 1143072, while the sum is 53.

The square root of 9747899 is about 3122.1625518221. The cubic root of 9747899 is about 213.6175879297.

The spelling of 9747899 in words is "nine million, seven hundred forty-seven thousand, eight hundred ninety-nine".