3632947857 has 72 divisors (see below), whose sum is σ = 6751162080. Its totient is φ = 1861211520.

The previous prime is 3632947811. The next prime is 3632947859. The reversal of 3632947857 is 7587492363.

It is not a de Polignac number, because 3632947857 - 2⁷ = 3632947729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3632947859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 348994 + ... + 359252.

It is an arithmetic number, because the mean of its divisors is an integer number (93766140).

Almost surely, 2^3632947857 is an apocalyptic number.

It is an amenable number.

3632947857 is a deficient number, since it is larger than the sum of its proper divisors (3118214223).

3632947857 is a wasteful number, since it uses less digits than its factorization.

3632947857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363 (or 10353 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 3632947857 is about 60273.9401151111. The cubic root of 3632947857 is about 1537.2802754021.

The spelling of 3632947857 in words is "three billion, six hundred thirty-two million, nine hundred forty-seven thousand, eight hundred fifty-seven".