8402939 has 8 divisors (see below), whose sum is σ = 8590848. Its totient is φ = 8217000.

The previous prime is 8402917. The next prime is 8402951. The reversal of 8402939 is 9392048.

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 8402939 - 2⁸ = 8402683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8402899 and 8402908.

It is not an unprimeable number, because it can be changed into a prime (8402969) 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, 10814 + ... + 11564.

It is an arithmetic number, because the mean of its divisors is an integer number (1073856).

Almost surely, 2^8402939 is an apocalyptic number.

8402939 is a deficient number, since it is larger than the sum of its proper divisors (187909).

8402939 is a wasteful number, since it uses less digits than its factorization.

8402939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 8402939 is about 2898.7823305657. The cubic root of 8402939 is about 203.3029764469.

The spelling of 8402939 in words is "eight million, four hundred two thousand, nine hundred thirty-nine".