9939795 has 32 divisors (see below), whose sum is σ = 16975872. Its totient is φ = 4954752.

The previous prime is 9939773. The next prime is 9939799. The reversal of 9939795 is 5979399.

It is not a de Polignac number, because 9939795 - 2⁵ = 9939763 is a prime.

It is an Ulam number.

9939795 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9939799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15909 + ... + 16521.

It is an arithmetic number, because the mean of its divisors is an integer number (530496).

Almost surely, 2^9939795 is an apocalyptic number.

9939795 is a deficient number, since it is larger than the sum of its proper divisors (7036077).

9939795 is a wasteful number, since it uses less digits than its factorization.

9939795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its digits is 688905, while the sum is 51.

The square root of 9939795 is about 3152.7440428934. The cubic root of 9939795 is about 215.0102392816.

The spelling of 9939795 in words is "nine million, nine hundred thirty-nine thousand, seven hundred ninety-five".