2457457 has 4 divisors (see below), whose sum is σ = 2474100. Its totient is φ = 2440816.

The previous prime is 2457449. The next prime is 2457461. The reversal of 2457457 is 7547542.

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 159201 + 2298256 = 399^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 2457457 - 2³ = 2457449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2457467) 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, 8098 + ... + 8395.

It is an arithmetic number, because the mean of its divisors is an integer number (618525).

2^2457457 is an apocalyptic number.

It is an amenable number.

2457457 is a deficient number, since it is larger than the sum of its proper divisors (16643).

2457457 is a wasteful number, since it uses less digits than its factorization.

2457457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16642.

The product of its digits is 39200, while the sum is 34.

The square root of 2457457 is about 1567.6278257291. The cubic root of 2457457 is about 134.9466089741.

The spelling of 2457457 in words is "two million, four hundred fifty-seven thousand, four hundred fifty-seven".