57320843 has 2 divisors, whose sum is σ = 57320844. Its totient is φ = 57320842.

The previous prime is 57320827. The next prime is 57320867. The reversal of 57320843 is 34802375.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57320843 - 2⁴ = 57320827 is a prime.

It is not a weakly prime, because it can be changed into another prime (57322843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28660421 + 28660422.

It is an arithmetic number, because the mean of its divisors is an integer number (28660422).

Almost surely, 2^57320843 is an apocalyptic number.

57320843 is a deficient number, since it is larger than the sum of its proper divisors (1).

57320843 is an equidigital number, since it uses as much as digits as its factorization.

57320843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 57320843 is about 7571.0529650769. The cubic root of 57320843 is about 385.5708471092.

The spelling of 57320843 in words is "fifty-seven million, three hundred twenty thousand, eight hundred forty-three".