3977549682 has 16 divisors (see below), whose sum is σ = 7967289600. Its totient is φ = 1323818192.

The previous prime is 3977549677. The next prime is 3977549683. The reversal of 3977549682 is 2869457793.

It is a super-2 number, since 2×3977549682² = 31641802945556602248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3977549683) 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 7 ways as a sum of consecutive naturals, for example, 503682 + ... + 511517.

It is an arithmetic number, because the mean of its divisors is an integer number (497955600).

Almost surely, 2^3977549682 is an apocalyptic number.

3977549682 is an abundant number, since it is smaller than the sum of its proper divisors (3989739918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3977549682 is a wasteful number, since it uses less digits than its factorization.

3977549682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015857.

The product of its digits is 22861440, while the sum is 60.

The square root of 3977549682 is about 63067.8181166909. The cubic root of 3977549682 is about 1584.4256736225.

The spelling of 3977549682 in words is "three billion, nine hundred seventy-seven million, five hundred forty-nine thousand, six hundred eighty-two".