3980279 has 4 divisors (see below), whose sum is σ = 4117560. Its totient is φ = 3843000.

The previous prime is 3980231. The next prime is 3980281. The reversal of 3980279 is 9720893.

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

It is a cyclic number.

It is not a de Polignac number, because 3980279 - 2¹² = 3976183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68597 + ... + 68654.

It is an arithmetic number, because the mean of its divisors is an integer number (1029390).

Almost surely, 2^3980279 is an apocalyptic number.

3980279 is a deficient number, since it is larger than the sum of its proper divisors (137281).

3980279 is a wasteful number, since it uses less digits than its factorization.

3980279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137280.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3980279 is about 1995.0636581322. The cubic root of 3980279 is about 158.4787991559.

The spelling of 3980279 in words is "three million, nine hundred eighty thousand, two hundred seventy-nine".