3687944825 has 6 divisors (see below), whose sum is σ = 4573051614. Its totient is φ = 2950355840.

The previous prime is 3687944807. The next prime is 3687944849. The reversal of 3687944825 is 5284497863.

It can be written as a sum of positive squares in 3 ways, for example, as 89264704 + 3598680121 = 9448^2 + 59989^2 .

It is not a de Polignac number, because 3687944825 - 2¹⁰ = 3687943801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73758872 + ... + 73758921.

It is an arithmetic number, because the mean of its divisors is an integer number (762175269).

Almost surely, 2^3687944825 is an apocalyptic number.

It is an amenable number.

3687944825 is a deficient number, since it is larger than the sum of its proper divisors (885106789).

3687944825 is a wasteful number, since it uses less digits than its factorization.

3687944825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147517803 (or 147517798 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 56.

The square root of 3687944825 is about 60728.4515280935. The cubic root of 3687944825 is about 1544.9987711332.

The spelling of 3687944825 in words is "three billion, six hundred eighty-seven million, nine hundred forty-four thousand, eight hundred twenty-five".