3930879 has 4 divisors (see below), whose sum is σ = 5241176. Its totient is φ = 2620584.

The previous prime is 3930869. The next prime is 3930887. The reversal of 3930879 is 9780393.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3930879 - 2¹¹ = 3928831 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655144 + ... + 655149.

It is an arithmetic number, because the mean of its divisors is an integer number (1310294).

Almost surely, 2^3930879 is an apocalyptic number.

3930879 is a deficient number, since it is larger than the sum of its proper divisors (1310297).

3930879 is a wasteful number, since it uses less digits than its factorization.

3930879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310296.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 3930879 is about 1982.6444461880. The cubic root of 3930879 is about 157.8204310428.

The spelling of 3930879 in words is "three million, nine hundred thirty thousand, eight hundred seventy-nine".