3977222786 has 8 divisors (see below), whose sum is σ = 5966102604. Its totient is φ = 1988521920.

The previous prime is 3977222783. The next prime is 3977222803. The reversal of 3977222786 is 6872227793.

3977222786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3977194225 + 28561 = 63065^2 + 169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3977222783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58166 + ... + 106478.

Almost surely, 2^3977222786 is an apocalyptic number.

3977222786 is a deficient number, since it is larger than the sum of its proper divisors (1988879818).

3977222786 is a wasteful number, since it uses less digits than its factorization.

3977222786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89476.

The product of its digits is 3556224, while the sum is 53.

The square root of 3977222786 is about 63065.2264405671. The cubic root of 3977222786 is about 1584.3822669487.

The spelling of 3977222786 in words is "three billion, nine hundred seventy-seven million, two hundred twenty-two thousand, seven hundred eighty-six".