6858401 has 6 divisors (see below), whose sum is σ = 7538706. Its totient is φ = 6234800.

The previous prime is 6858353. The next prime is 6858403. The reversal of 6858401 is 1048586.

It can be written as a sum of positive squares in only one way, i.e., 5856400 + 1002001 = 2420^2 + 1001^2 .

It is not a de Polignac number, because 6858401 - 2¹⁸ = 6596257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6858403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28220 + ... + 28461.

It is an arithmetic number, because the mean of its divisors is an integer number (1256451).

Almost surely, 2^6858401 is an apocalyptic number.

It is an amenable number.

6858401 is a deficient number, since it is larger than the sum of its proper divisors (680305).

6858401 is a wasteful number, since it uses less digits than its factorization.

6858401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56703 (or 56692 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 6858401 is about 2618.8549024335. The cubic root of 6858401 is about 189.9944689064.

The spelling of 6858401 in words is "six million, eight hundred fifty-eight thousand, four hundred one".