2705457 has 4 divisors (see below), whose sum is σ = 3607280. Its totient is φ = 1803636.

The previous prime is 2705447. The next prime is 2705471. The reversal of 2705457 is 7545072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2705457 - 2⁴ = 2705441 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2705447) 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, 450907 + ... + 450912.

It is an arithmetic number, because the mean of its divisors is an integer number (901820).

2^2705457 is an apocalyptic number.

It is an amenable number.

2705457 is a deficient number, since it is larger than the sum of its proper divisors (901823).

2705457 is an equidigital number, since it uses as much as digits as its factorization.

2705457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901822.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 2705457 is about 1644.8273465626. The cubic root of 2705457 is about 139.3414135456.

The spelling of 2705457 in words is "two million, seven hundred five thousand, four hundred fifty-seven".