407939 has 8 divisors (see below), whose sum is σ = 471648. Its totient is φ = 345600.

The previous prime is 407923. The next prime is 407947. The reversal of 407939 is 939704.

It is a happy number.

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 407939 - 2⁴ = 407923 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (407959) 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, 419 + ... + 995.

It is an arithmetic number, because the mean of its divisors is an integer number (58956).

2⁴⁰⁷⁹³⁹ is an apocalyptic number.

407939 is a deficient number, since it is larger than the sum of its proper divisors (63709).

407939 is a wasteful number, since it uses less digits than its factorization.

407939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 407939 is about 638.7010255198. The cubic root of 407939 is about 74.1648988904.

The spelling of 407939 in words is "four hundred seven thousand, nine hundred thirty-nine".