6452905 has 4 divisors (see below), whose sum is σ = 7743492. Its totient is φ = 5162320.

The previous prime is 6452899. The next prime is 6452917. The reversal of 6452905 is 5092546.

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 1971216 + 4481689 = 1404^2 + 2117^2 .

It is not a de Polignac number, because 6452905 - 2⁷ = 6452777 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

6452905 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645286 + ... + 645295.

It is an arithmetic number, because the mean of its divisors is an integer number (1935873).

Almost surely, 2^6452905 is an apocalyptic number.

It is an amenable number.

6452905 is a deficient number, since it is larger than the sum of its proper divisors (1290587).

6452905 is a wasteful number, since it uses less digits than its factorization.

6452905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290586.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 6452905 is about 2540.2568767745. The cubic root of 6452905 is about 186.1737402316.

The spelling of 6452905 in words is "six million, four hundred fifty-two thousand, nine hundred five".