3980549546 has 4 divisors (see below), whose sum is σ = 5970824322. Its totient is φ = 1990274772.

The previous prime is 3980549543. The next prime is 3980549549. The reversal of 3980549546 is 6459450893.

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

It is an interprime number because it is at equal distance from previous prime (3980549543) and next prime (3980549549).

It can be written as a sum of positive squares in only one way, i.e., 2134902025 + 1845647521 = 46205^2 + 42961^2 .

It is a super-2 number, since 2×3980549546² = 31689549376321612232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3980549543) 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 as a sum of consecutive naturals, namely, 995137385 + ... + 995137388.

Almost surely, 2^3980549546 is an apocalyptic number.

3980549546 is a deficient number, since it is larger than the sum of its proper divisors (1990274776).

3980549546 is a wasteful number, since it uses less digits than its factorization.

3980549546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990274775.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The square root of 3980549546 is about 63091.5964768685. The cubic root of 3980549546 is about 1584.8238976131.

The spelling of 3980549546 in words is "three billion, nine hundred eighty million, five hundred forty-nine thousand, five hundred forty-six".