9779995 has 8 divisors (see below), whose sum is σ = 11985984. Its totient is φ = 7657344.

The previous prime is 9779993. The next prime is 9780011. The reversal of 9779995 is 5999779.

9779995 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9779995 - 2¹ = 9779993 is a prime.

It is a Duffinian number.

9779995 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9779993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20574 + ... + 21043.

It is an arithmetic number, because the mean of its divisors is an integer number (1498248).

Almost surely, 2^9779995 is an apocalyptic number.

9779995 is a deficient number, since it is larger than the sum of its proper divisors (2205989).

9779995 is a wasteful number, since it uses less digits than its factorization.

9779995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41669.

The product of its digits is 1607445, while the sum is 55.

The square root of 9779995 is about 3127.2983548104. The cubic root of 9779995 is about 213.8517839972.

The spelling of 9779995 in words is "nine million, seven hundred seventy-nine thousand, nine hundred ninety-five".