3977970969 has 32 divisors (see below), whose sum is σ = 6270227200. Its totient is φ = 2241945216.

The previous prime is 3977970959. The next prime is 3977970989. The reversal of 3977970969 is 9690797793.

It is not a de Polignac number, because 3977970969 - 2⁹ = 3977970457 is a prime.

It is a super-2 number, since 2×3977970969² = 31648506060413597922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3977970959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48639 + ... + 101595.

It is an arithmetic number, because the mean of its divisors is an integer number (195944600).

Almost surely, 2^3977970969 is an apocalyptic number.

It is an amenable number.

3977970969 is a deficient number, since it is larger than the sum of its proper divisors (2292256231).

3977970969 is an equidigital number, since it uses as much as digits as its factorization.

3977970969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53054 (or 53040 counting only the distinct ones).

The product of its (nonzero) digits is 40507614, while the sum is 66.

The square root of 3977970969 is about 63071.1579804906. The cubic root of 3977970969 is about 1584.4816104368.

The spelling of 3977970969 in words is "three billion, nine hundred seventy-seven million, nine hundred seventy thousand, nine hundred sixty-nine".