3843772928 has 20 divisors (see below), whose sum is σ = 7680039510. Its totient is φ = 1921886208.

The previous prime is 3843772819. The next prime is 3843772991. The reversal of 3843772928 is 8292773483.

It can be written as a sum of positive squares in only one way, i.e., 3690805504 + 152967424 = 60752^2 + 12368^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3843772928.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3753173 + ... + 3754196.

Almost surely, 2^3843772928 is an apocalyptic number.

It is an amenable number.

3843772928 is a deficient number, since it is larger than the sum of its proper divisors (3836266582).

3843772928 is an frugal number, since it uses more digits than its factorization.

3843772928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507387 (or 7507371 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 53.

The square root of 3843772928 is about 61998.1687471493. The cubic root of 3843772928 is about 1566.4597536506.

The spelling of 3843772928 in words is "three billion, eight hundred forty-three million, seven hundred seventy-two thousand, nine hundred twenty-eight".