385456843 has 4 divisors (see below), whose sum is σ = 385540848. Its totient is φ = 385372840.

The previous prime is 385456817. The next prime is 385456901. The reversal of 385456843 is 348654583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348654583 = 1399 ⋅249217.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385456843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385456793 and 385456802.

It is not an unprimeable number, because it can be changed into a prime (385456243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34696 + ... + 44437.

It is an arithmetic number, because the mean of its divisors is an integer number (96385212).

Almost surely, 2^385456843 is an apocalyptic number.

385456843 is a deficient number, since it is larger than the sum of its proper divisors (84005).

385456843 is an equidigital number, since it uses as much as digits as its factorization.

385456843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84004.

The product of its digits is 1382400, while the sum is 46.

The square root of 385456843 is about 19633.0548565423. The cubic root of 385456843 is about 727.7662644506.

The spelling of 385456843 in words is "three hundred eighty-five million, four hundred fifty-six thousand, eight hundred forty-three".