56784171 has 16 divisors (see below), whose sum is σ = 79593984. Its totient is φ = 35939904.

The previous prime is 56784149. The next prime is 56784181. The reversal of 56784171 is 17148765.

It is not a de Polignac number, because 56784171 - 2¹¹ = 56782123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56784181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6450 + ... + 12456.

It is an arithmetic number, because the mean of its divisors is an integer number (4974624).

Almost surely, 2^56784171 is an apocalyptic number.

56784171 is a deficient number, since it is larger than the sum of its proper divisors (22809813).

56784171 is a wasteful number, since it uses less digits than its factorization.

56784171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170.

The product of its digits is 47040, while the sum is 39.

The square root of 56784171 is about 7535.5272542802. The cubic root of 56784171 is about 384.3637571436.

The spelling of 56784171 in words is "fifty-six million, seven hundred eighty-four thousand, one hundred seventy-one".