8961939 has 24 divisors (see below), whose sum is σ = 15575040. Its totient is φ = 4850928.

The previous prime is 8961893. The next prime is 8961943. The reversal of 8961939 is 9391698.

It is not a de Polignac number, because 8961939 - 2⁷ = 8961811 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8961894 and 8961903.

It is not an unprimeable number, because it can be changed into a prime (8961959) 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 23 ways as a sum of consecutive naturals, for example, 2547 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (648960).

Almost surely, 2^8961939 is an apocalyptic number.

8961939 is a deficient number, since it is larger than the sum of its proper divisors (6613101).

8961939 is a wasteful number, since it uses less digits than its factorization.

8961939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519 (or 7516 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 8961939 is about 2993.6497791158. The cubic root of 8961939 is about 207.7147455024.

The spelling of 8961939 in words is "eight million, nine hundred sixty-one thousand, nine hundred thirty-nine".