3977131227 has 8 divisors (see below), whose sum is σ = 5533400064. Its totient is φ = 2536141608.

The previous prime is 3977131217. The next prime is 3977131261. The reversal of 3977131227 is 7221317793.

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

It is not a de Polignac number, because 3977131227 - 2¹² = 3977127131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3977131217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28819723 + ... + 28819860.

It is an arithmetic number, because the mean of its divisors is an integer number (691675008).

Almost surely, 2^3977131227 is an apocalyptic number.

3977131227 is a deficient number, since it is larger than the sum of its proper divisors (1556268837).

3977131227 is a wasteful number, since it uses less digits than its factorization.

3977131227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57639609.

The product of its digits is 111132, while the sum is 42.

The square root of 3977131227 is about 63064.5005292201. The cubic root of 3977131227 is about 1584.3701089198.

The spelling of 3977131227 in words is "three billion, nine hundred seventy-seven million, one hundred thirty-one thousand, two hundred twenty-seven".