3975515428 has 6 divisors (see below), whose sum is σ = 6957152006. Its totient is φ = 1987757712.

The previous prime is 3975515393. The next prime is 3975515437. The reversal of 3975515428 is 8245155793.

It can be written as a sum of positive squares in only one way, i.e., 3975050304 + 465124 = 63048^2 + 682^2 .

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 as a sum of consecutive naturals, namely, 496939425 + ... + 496939432.

Almost surely, 2^3975515428 is an apocalyptic number.

It is an amenable number.

3975515428 is a deficient number, since it is larger than the sum of its proper divisors (2981636578).

3975515428 is a wasteful number, since it uses less digits than its factorization.

3975515428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993878861 (or 993878859 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 49.

The square root of 3975515428 is about 63051.6885420208. The cubic root of 3975515428 is about 1584.1555178608.

The spelling of 3975515428 in words is "three billion, nine hundred seventy-five million, five hundred fifteen thousand, four hundred twenty-eight".