47655643 has 8 divisors (see below), whose sum is σ = 54505440. Its totient is φ = 40816320.

The previous prime is 47655637. The next prime is 47655661. The reversal of 47655643 is 34655674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47655643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47655596 and 47655605.

It is not an unprimeable number, because it can be changed into a prime (47655683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15693 + ... + 18481.

It is an arithmetic number, because the mean of its divisors is an integer number (6813180).

Almost surely, 2^47655643 is an apocalyptic number.

47655643 is a deficient number, since it is larger than the sum of its proper divisors (6849797).

47655643 is a wasteful number, since it uses less digits than its factorization.

47655643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237.

The product of its digits is 302400, while the sum is 40.

The square root of 47655643 is about 6903.3066714438. The cubic root of 47655643 is about 362.5529511234.

The spelling of 47655643 in words is "forty-seven million, six hundred fifty-five thousand, six hundred forty-three".