3798711865 has 32 divisors (see below), whose sum is σ = 5019991200. Its totient is φ = 2758728960.

The previous prime is 3798711853. The next prime is 3798711887. The reversal of 3798711865 is 5681178973.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 3445572601 + 353139264 = 58699^2 + 18792^2 .

It is not a de Polignac number, because 3798711865 - 2⁷ = 3798711737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667251 + ... + 672919.

It is an arithmetic number, because the mean of its divisors is an integer number (156874725).

Almost surely, 2^3798711865 is an apocalyptic number.

It is an amenable number.

3798711865 is a deficient number, since it is larger than the sum of its proper divisors (1221279335).

3798711865 is an equidigital number, since it uses as much as digits as its factorization.

3798711865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5774 (or 5748 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 55.

The square root of 3798711865 is about 61633.6909895878. The cubic root of 3798711865 is about 1560.3144042229.

The spelling of 3798711865 in words is "three billion, seven hundred ninety-eight million, seven hundred eleven thousand, eight hundred sixty-five".