5645457 has 10 divisors (see below), whose sum is σ = 8433458. Its totient is φ = 3763584.

The previous prime is 5645447. The next prime is 5645473. The reversal of 5645457 is 7545465.

It is a happy number.

5645457 is a `hidden beast` number, since 5 + 645 + 4 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5645376 + 81 = 2376^2 + 9^2 .

It is not a de Polignac number, because 5645457 - 2⁷ = 5645329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645407) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34768 + ... + 34929.

Almost surely, 2^5645457 is an apocalyptic number.

It is an amenable number.

5645457 is a deficient number, since it is larger than the sum of its proper divisors (2788001).

5645457 is an equidigital number, since it uses as much as digits as its factorization.

5645457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69709 (or 69700 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 5645457 is about 2376.0170453934. The cubic root of 5645457 is about 178.0599995520.

The spelling of 5645457 in words is "five million, six hundred forty-five thousand, four hundred fifty-seven".