3684968869 has 2 divisors, whose sum is σ = 3684968870. Its totient is φ = 3684968868.

The previous prime is 3684968863. The next prime is 3684968887. The reversal of 3684968869 is 9688694863.

It is a happy number.

3684968869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2546716225 + 1138252644 = 50465^2 + 33738^2 .

It is a cyclic number.

It is not a de Polignac number, because 3684968869 - 2⁷ = 3684968741 is a prime.

It is a super-2 number, since 2×3684968869² = 27157991130998278322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3684968863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842484434 + 1842484435.

It is an arithmetic number, because the mean of its divisors is an integer number (1842484435).

Almost surely, 2^3684968869 is an apocalyptic number.

It is an amenable number.

3684968869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684968869 is an equidigital number, since it uses as much as digits as its factorization.

3684968869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107495424, while the sum is 67.

The square root of 3684968869 is about 60703.9444270304. The cubic root of 3684968869 is about 1544.5830847218.

The spelling of 3684968869 in words is "three billion, six hundred eighty-four million, nine hundred sixty-eight thousand, eight hundred sixty-nine".