56783447 has 8 divisors (see below), whose sum is σ = 64944000. Its totient is φ = 48635064.

The previous prime is 56783431. The next prime is 56783449. The reversal of 56783447 is 74438765.

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

It is a cyclic number.

It is not a de Polignac number, because 56783447 - 2⁴ = 56783431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56783398 and 56783407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56783449) 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, 11804 + ... + 15902.

It is an arithmetic number, because the mean of its divisors is an integer number (8118000).

Almost surely, 2^56783447 is an apocalyptic number.

56783447 is a deficient number, since it is larger than the sum of its proper divisors (8160553).

56783447 is a wasteful number, since it uses less digits than its factorization.

56783447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085.

The product of its digits is 564480, while the sum is 44.

The square root of 56783447 is about 7535.4792150201. The cubic root of 56783447 is about 384.3621235865.

The spelling of 56783447 in words is "fifty-six million, seven hundred eighty-three thousand, four hundred forty-seven".