56783647 has 8 divisors (see below), whose sum is σ = 61230960. Its totient is φ = 52482240.

The previous prime is 56783627. The next prime is 56783651. The reversal of 56783647 is 74638765.

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-56783647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56783597 and 56783606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56783627) 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, 35668 + ... + 37225.

It is an arithmetic number, because the mean of its divisors is an integer number (7653870).

Almost surely, 2^56783647 is an apocalyptic number.

56783647 is a deficient number, since it is larger than the sum of its proper divisors (4447313).

56783647 is a wasteful number, since it uses less digits than its factorization.

56783647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72953.

The product of its digits is 846720, while the sum is 46.

The square root of 56783647 is about 7535.4924855646. The cubic root of 56783647 is about 384.3625748468.

The spelling of 56783647 in words is "fifty-six million, seven hundred eighty-three thousand, six hundred forty-seven".