3965223377 has 2 divisors, whose sum is σ = 3965223378. Its totient is φ = 3965223376.

The previous prime is 3965223349. The next prime is 3965223467. The reversal of 3965223377 is 7733225693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2871995281 + 1093228096 = 53591^2 + 33064^2 .

It is a cyclic number.

It is not a de Polignac number, because 3965223377 - 2²² = 3961029073 is a prime.

It is not a weakly prime, because it can be changed into another prime (3965223277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982611688 + 1982611689.

It is an arithmetic number, because the mean of its divisors is an integer number (1982611689).

Almost surely, 2^3965223377 is an apocalyptic number.

It is an amenable number.

3965223377 is a deficient number, since it is larger than the sum of its proper divisors (1).

3965223377 is an equidigital number, since it uses as much as digits as its factorization.

3965223377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 47.

The square root of 3965223377 is about 62970.0196680928. The cubic root of 3965223377 is about 1582.7872844231.

The spelling of 3965223377 in words is "three billion, nine hundred sixty-five million, two hundred twenty-three thousand, three hundred seventy-seven".