3869171828 has 6 divisors (see below), whose sum is σ = 6771050706. Its totient is φ = 1934585912.

The previous prime is 3869171827. The next prime is 3869171869. The reversal of 3869171828 is 8281719683.

It can be written as a sum of positive squares in only one way, i.e., 2318229904 + 1550941924 = 48148^2 + 39382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3869171828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869171821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483646475 + ... + 483646482.

It is an arithmetic number, because the mean of its divisors is an integer number (1128508451).

Almost surely, 2^3869171828 is an apocalyptic number.

It is an amenable number.

3869171828 is a deficient number, since it is larger than the sum of its proper divisors (2901878878).

3869171828 is a wasteful number, since it uses less digits than its factorization.

3869171828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967292961 (or 967292959 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 3869171828 is about 62202.6673704593. The cubic root of 3869171828 is about 1569.9024684162.

The spelling of 3869171828 in words is "three billion, eight hundred sixty-nine million, one hundred seventy-one thousand, eight hundred twenty-eight".