3973801225 has 12 divisors (see below), whose sum is σ = 4928310684. Its totient is φ = 3178526720.

The previous prime is 3973801211. The next prime is 3973801283. The reversal of 3973801225 is 5221083793.

It can be written as a sum of positive squares in 6 ways, for example, as 8202496 + 3965598729 = 2864^2 + 62973^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3973801225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 250737 + ... + 266113.

It is an arithmetic number, because the mean of its divisors is an integer number (410692557).

Almost surely, 2^3973801225 is an apocalyptic number.

It is an amenable number.

3973801225 is a deficient number, since it is larger than the sum of its proper divisors (954509459).

3973801225 is a wasteful number, since it uses less digits than its factorization.

3973801225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25724 (or 25719 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 3973801225 is about 63038.0934435679. The cubic root of 3973801225 is about 1583.9277943876.

The spelling of 3973801225 in words is "three billion, nine hundred seventy-three million, eight hundred one thousand, two hundred twenty-five".