256854347 has 8 divisors (see below), whose sum is σ = 262951920. Its totient is φ = 250817760.

The previous prime is 256854337. The next prime is 256854361. The reversal of 256854347 is 743458652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256854347 - 2¹⁶ = 256788811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256854298 and 256854307.

It is not an unprimeable number, because it can be changed into a prime (256854337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6668 + ... + 23625.

It is an arithmetic number, because the mean of its divisors is an integer number (32868990).

Almost surely, 2^256854347 is an apocalyptic number.

256854347 is a deficient number, since it is larger than the sum of its proper divisors (6097573).

256854347 is a wasteful number, since it uses less digits than its factorization.

256854347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30493.

The product of its digits is 806400, while the sum is 44.

The square root of 256854347 is about 16026.6761057931. The cubic root of 256854347 is about 635.6659861249.

The spelling of 256854347 in words is "two hundred fifty-six million, eight hundred fifty-four thousand, three hundred forty-seven".