9963939 has 8 divisors (see below), whose sum is σ = 13302352. Its totient is φ = 6634080.

The previous prime is 9963931. The next prime is 9963959. The reversal of 9963939 is 9393699.

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

It is not a de Polignac number, because 9963939 - 2³ = 9963931 is a prime.

It is a Duffinian number.

9963939 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9963931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437 + ... + 4689.

It is an arithmetic number, because the mean of its divisors is an integer number (1662794).

Almost surely, 2^9963939 is an apocalyptic number.

9963939 is a deficient number, since it is larger than the sum of its proper divisors (3338413).

9963939 is a wasteful number, since it uses less digits than its factorization.

9963939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277.

The product of its digits is 354294, while the sum is 48.

The square root of 9963939 is about 3156.5707658787. The cubic root of 9963939 is about 215.1841868560.

The spelling of 9963939 in words is "nine million, nine hundred sixty-three thousand, nine hundred thirty-nine".