3721135928 has 16 divisors (see below), whose sum is σ = 7217721000. Its totient is φ = 1796410336.

The previous prime is 3721135927. The next prime is 3721135939. The reversal of 3721135928 is 8295311273.

3721135928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721135927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8019458 + ... + 8019921.

Almost surely, 2^3721135928 is an apocalyptic number.

It is an amenable number.

3721135928 is a deficient number, since it is larger than the sum of its proper divisors (3496585072).

3721135928 is a wasteful number, since it uses less digits than its factorization.

3721135928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16039414 (or 16039410 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 3721135928 is about 61001.1141537595. The cubic root of 3721135928 is about 1549.6198759843.

The spelling of 3721135928 in words is "three billion, seven hundred twenty-one million, one hundred thirty-five thousand, nine hundred twenty-eight".