3938366677 has 4 divisors (see below), whose sum is σ = 4500990496. Its totient is φ = 3375742860.

The previous prime is 3938366669. The next prime is 3938366687. The reversal of 3938366677 is 7766638393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3938366677 - 2³ = 3938366669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938366687) 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, 281311899 + ... + 281311912.

It is an arithmetic number, because the mean of its divisors is an integer number (1125247624).

Almost surely, 2^3938366677 is an apocalyptic number.

It is an amenable number.

3938366677 is a deficient number, since it is larger than the sum of its proper divisors (562623819).

3938366677 is an equidigital number, since it uses as much as digits as its factorization.

3938366677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562623818.

The product of its digits is 20575296, while the sum is 58.

The square root of 3938366677 is about 62756.4074577250. The cubic root of 3938366677 is about 1579.2057479219.

The spelling of 3938366677 in words is "three billion, nine hundred thirty-eight million, three hundred sixty-six thousand, six hundred seventy-seven".