3572728947 has 24 divisors (see below), whose sum is σ = 5252508560. Its totient is φ = 2339513280.

The previous prime is 3572728931. The next prime is 3572728949. The reversal of 3572728947 is 7498272753.

3572728947 is a `hidden beast` number, since 3 + 572 + 7 + 28 + 9 + 47 = 666.

It is not a de Polignac number, because 3572728947 - 2⁴ = 3572728931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3572728893 and 3572728902.

It is not an unprimeable number, because it can be changed into a prime (3572728949) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 427929 + ... + 436197.

Almost surely, 2^3572728947 is an apocalyptic number.

3572728947 is a deficient number, since it is larger than the sum of its proper divisors (1679779613).

3572728947 is a wasteful number, since it uses less digits than its factorization.

3572728947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123 (or 9120 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 3572728947 is about 59772.3091991601. The cubic root of 3572728947 is about 1528.7390392305.

The spelling of 3572728947 in words is "three billion, five hundred seventy-two million, seven hundred twenty-eight thousand, nine hundred forty-seven".