3877994669 has 2 divisors, whose sum is σ = 3877994670. Its totient is φ = 3877994668.

The previous prime is 3877994621. The next prime is 3877994711. The reversal of 3877994669 is 9664997783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3702114025 + 175880644 = 60845^2 + 13262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3877994669 is a prime.

It is a super-2 number, since 2×3877994669² = 30077685305584839122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3877994599 and 3877994608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3877999669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1938997334 + 1938997335.

It is an arithmetic number, because the mean of its divisors is an integer number (1938997335).

Almost surely, 2^3877994669 is an apocalyptic number.

It is an amenable number.

3877994669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3877994669 is an equidigital number, since it uses as much as digits as its factorization.

3877994669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 68.

The square root of 3877994669 is about 62273.5471046896. The cubic root of 3877994669 is about 1571.0948411590.

The spelling of 3877994669 in words is "three billion, eight hundred seventy-seven million, nine hundred ninety-four thousand, six hundred sixty-nine".