3980447 has 4 divisors (see below), whose sum is σ = 3987816. Its totient is φ = 3973080.

The previous prime is 3980429. The next prime is 3980461. The reversal of 3980447 is 7440893.

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 3980447 - 2⁸ = 3980191 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 (3980407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (996954).

Almost surely, 2^3980447 is an apocalyptic number.

3980447 is a deficient number, since it is larger than the sum of its proper divisors (7369).

3980447 is an equidigital number, since it uses as much as digits as its factorization.

3980447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3980447 is about 1995.1057616076. The cubic root of 3980447 is about 158.4810288207.

The spelling of 3980447 in words is "three million, nine hundred eighty thousand, four hundred forty-seven".