56967729 has 16 divisors (see below), whose sum is σ = 93485952. Its totient is φ = 30048768.

The previous prime is 56967727. The next prime is 56967749. The reversal of 56967729 is 92776965.

It is not a de Polignac number, because 56967729 - 2¹ = 56967727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56967721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104064 + ... + 104609.

It is an arithmetic number, because the mean of its divisors is an integer number (5842872).

Almost surely, 2^56967729 is an apocalyptic number.

It is an amenable number.

56967729 is a deficient number, since it is larger than the sum of its proper divisors (36518223).

56967729 is a wasteful number, since it uses less digits than its factorization.

56967729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208696.

The product of its digits is 1428840, while the sum is 51.

The square root of 56967729 is about 7547.6969335023. The cubic root of 56967729 is about 384.7774707737. Note that the first 3 decimals are identical.

The spelling of 56967729 in words is "fifty-six million, nine hundred sixty-seven thousand, seven hundred twenty-nine".