9798977 has 4 divisors (see below), whose sum is σ = 9848916. Its totient is φ = 9749040.

The previous prime is 9798973. The next prime is 9799019. The reversal of 9798977 is 7798979.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 410881 = 3064^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 9798977 - 2² = 9798973 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9798973) 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, 24674 + ... + 25067.

It is an arithmetic number, because the mean of its divisors is an integer number (2462229).

Almost surely, 2^9798977 is an apocalyptic number.

It is an amenable number.

9798977 is a deficient number, since it is larger than the sum of its proper divisors (49939).

9798977 is a wasteful number, since it uses less digits than its factorization.

9798977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49938.

The product of its digits is 2000376, while the sum is 56.

The square root of 9798977 is about 3130.3317715539. The cubic root of 9798977 is about 213.9900496145.

The spelling of 9798977 in words is "nine million, seven hundred ninety-eight thousand, nine hundred seventy-seven".