4257923 has 4 divisors (see below), whose sum is σ = 4373040. Its totient is φ = 4142808.

The previous prime is 4257899. The next prime is 4257931. The reversal of 4257923 is 3297524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4257923 - 2¹⁴ = 4241539 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 4257923.

It is not an unprimeable number, because it can be changed into a prime (4257023) 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, 57503 + ... + 57576.

It is an arithmetic number, because the mean of its divisors is an integer number (1093260).

Almost surely, 2^4257923 is an apocalyptic number.

4257923 is a deficient number, since it is larger than the sum of its proper divisors (115117).

4257923 is a wasteful number, since it uses less digits than its factorization.

4257923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115116.

The product of its digits is 15120, while the sum is 32.

The square root of 4257923 is about 2063.4735278166. The cubic root of 4257923 is about 162.0811842237.

The spelling of 4257923 in words is "four million, two hundred fifty-seven thousand, nine hundred twenty-three".