4257497 has 4 divisors (see below), whose sum is σ = 4507956. Its totient is φ = 4007040.

The previous prime is 4257469. The next prime is 4257503. The reversal of 4257497 is 7947524.

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 3916441 + 341056 = 1979^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 4257497 - 2⁸ = 4257241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4257497.

It is not an unprimeable number, because it can be changed into a prime (4257467) 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, 125204 + ... + 125237.

It is an arithmetic number, because the mean of its divisors is an integer number (1126989).

Almost surely, 2^4257497 is an apocalyptic number.

It is an amenable number.

4257497 is a deficient number, since it is larger than the sum of its proper divisors (250459).

4257497 is a wasteful number, since it uses less digits than its factorization.

4257497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250458.

The product of its digits is 70560, while the sum is 38.

The square root of 4257497 is about 2063.3703012305. The cubic root of 4257497 is about 162.0757787018.

It can be divided in two parts, 425 and 7497, that multiplied together give a square (3186225 = 1785²).

The spelling of 4257497 in words is "four million, two hundred fifty-seven thousand, four hundred ninety-seven".