939909939 has 12 divisors (see below), whose sum is σ = 1265785368. Its totient is φ = 620382400.

The previous prime is 939909937. The next prime is 939909961.

939909939 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 939909939 - 2¹ = 939909937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (939909937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15247 + ... + 45959.

It is an arithmetic number, because the mean of its divisors is an integer number (105482114).

Almost surely, 2^939909939 is an apocalyptic number.

939909939 is a deficient number, since it is larger than the sum of its proper divisors (325875429).

939909939 is a wasteful number, since it uses less digits than its factorization.

939909939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30918 (or 30817 counting only the distinct ones).

The product of its (nonzero) digits is 4782969, while the sum is 60.

The square root of 939909939 is about 30657.9506653657. The cubic root of 939909939 is about 979.5548231403.

The spelling of 939909939 in words is "nine hundred thirty-nine million, nine hundred nine thousand, nine hundred thirty-nine".