56747843 has 2 divisors, whose sum is σ = 56747844. Its totient is φ = 56747842.

The previous prime is 56747827. The next prime is 56747863. The reversal of 56747843 is 34874765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56747843 - 2⁴ = 56747827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56747794 and 56747803.

It is not a weakly prime, because it can be changed into another prime (56747863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28373921 + 28373922.

It is an arithmetic number, because the mean of its divisors is an integer number (28373922).

Almost surely, 2^56747843 is an apocalyptic number.

56747843 is a deficient number, since it is larger than the sum of its proper divisors (1).

56747843 is an equidigital number, since it uses as much as digits as its factorization.

56747843 is an evil number, because the sum of its binary digits is even.

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

The square root of 56747843 is about 7533.1164201810. The cubic root of 56747843 is about 384.2817733497.

The spelling of 56747843 in words is "fifty-six million, seven hundred forty-seven thousand, eight hundred forty-three".