56784039 has 8 divisors (see below), whose sum is σ = 81536112. Its totient is φ = 34944000.

The previous prime is 56784023. The next prime is 56784083. The reversal of 56784039 is 93048765.

It is a happy number.

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

It is not a de Polignac number, because 56784039 - 2⁴ = 56784023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56784089) 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, 727962 + ... + 728039.

It is an arithmetic number, because the mean of its divisors is an integer number (10192014).

Almost surely, 2^56784039 is an apocalyptic number.

56784039 is a deficient number, since it is larger than the sum of its proper divisors (24752073).

56784039 is a wasteful number, since it uses less digits than its factorization.

56784039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456017.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 56784039 is about 7535.5184957639. The cubic root of 56784039 is about 384.3634593138.

The spelling of 56784039 in words is "fifty-six million, seven hundred eighty-four thousand, thirty-nine".