3977356572 has 72 divisors (see below), whose sum is σ = 11608667616. Its totient is φ = 1124665344.

The previous prime is 3977356571. The next prime is 3977356609. The reversal of 3977356572 is 2756537793.

3977356572 is a `hidden beast` number, since 3 + 9 + 7 + 7 + 3 + 565 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977356571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56913 + ... + 105800.

Almost surely, 2^3977356572 is an apocalyptic number.

It is an amenable number.

3977356572 is an abundant number, since it is smaller than the sum of its proper divisors (7631311044).

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

3977356572 is a wasteful number, since it uses less digits than its factorization.

3977356572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162827 (or 162822 counting only the distinct ones).

The product of its digits is 8334900, while the sum is 54.

The square root of 3977356572 is about 63066.2871271173. The cubic root of 3977356572 is about 1584.4000319236.

The spelling of 3977356572 in words is "three billion, nine hundred seventy-seven million, three hundred fifty-six thousand, five hundred seventy-two".