3980345 has 8 divisors (see below), whose sum is σ = 4792200. Its totient is φ = 3173760.

The previous prime is 3980341. The next prime is 3980359. The reversal of 3980345 is 5430893.

It can be written as a sum of positive squares in 4 ways, for example, as 896809 + 3083536 = 947^2 + 1756^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3980345 - 2² = 3980341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3980341) 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, 605 + ... + 2885.

It is an arithmetic number, because the mean of its divisors is an integer number (599025).

Almost surely, 2^3980345 is an apocalyptic number.

It is an amenable number.

3980345 is a deficient number, since it is larger than the sum of its proper divisors (811855).

3980345 is a wasteful number, since it uses less digits than its factorization.

3980345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3980345 is about 1995.0801988893. The cubic root of 3980345 is about 158.4796751031.

The spelling of 3980345 in words is "three million, nine hundred eighty thousand, three hundred forty-five".