3575303721 has 12 divisors (see below), whose sum is σ = 5633812080. Its totient is φ = 2166850680.

The previous prime is 3575303713. The next prime is 3575303737. The reversal of 3575303721 is 1273035753.

3575303721 is a `hidden beast` number, since 3 + 57 + 530 + 3 + 72 + 1 = 666.

3575303721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3575303721 - 2³ = 3575303713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3575303021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18056991 + ... + 18057188.

It is an arithmetic number, because the mean of its divisors is an integer number (469484340).

Almost surely, 2^3575303721 is an apocalyptic number.

It is an amenable number.

3575303721 is a deficient number, since it is larger than the sum of its proper divisors (2058508359).

3575303721 is a wasteful number, since it uses less digits than its factorization.

3575303721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36114196 (or 36114193 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 36.

The square root of 3575303721 is about 59793.8435041602. The cubic root of 3575303721 is about 1529.1061920339.

The spelling of 3575303721 in words is "three billion, five hundred seventy-five million, three hundred three thousand, seven hundred twenty-one".