6468457 has 4 divisors (see below), whose sum is σ = 6557140. Its totient is φ = 6379776.

The previous prime is 6468443. The next prime is 6468461. The reversal of 6468457 is 7548646.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 1104601 = 2316^2 + 1051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6468457 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (6468437) 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, 44232 + ... + 44377.

It is an arithmetic number, because the mean of its divisors is an integer number (1639285).

Almost surely, 2^6468457 is an apocalyptic number.

It is an amenable number.

6468457 is a deficient number, since it is larger than the sum of its proper divisors (88683).

6468457 is an equidigital number, since it uses as much as digits as its factorization.

6468457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88682.

The product of its digits is 161280, while the sum is 40.

The square root of 6468457 is about 2543.3161423622. The cubic root of 6468457 is about 186.3231846080.

The spelling of 6468457 in words is "six million, four hundred sixty-eight thousand, four hundred fifty-seven".