3977562906 has 24 divisors (see below), whose sum is σ = 8801417664. Its totient is φ = 1297644360.

The previous prime is 3977562893. The next prime is 3977562907. The reversal of 3977562906 is 6092657793.

3977562906 is a `hidden beast` number, since 3 + 9 + 7 + 7 + 5 + 629 + 0 + 6 = 666.

3977562906 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3977562907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2349960 + ... + 2351651.

It is an arithmetic number, because the mean of its divisors is an integer number (366725736).

Almost surely, 2^3977562906 is an apocalyptic number.

3977562906 is an abundant number, since it is smaller than the sum of its proper divisors (4823854758).

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

3977562906 is a wasteful number, since it uses less digits than its factorization.

3977562906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701666 (or 4701663 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 3977562906 is about 63067.9229561272. The cubic root of 3977562906 is about 1584.4274295127.

The spelling of 3977562906 in words is "three billion, nine hundred seventy-seven million, five hundred sixty-two thousand, nine hundred six".