4257291 has 4 divisors (see below), whose sum is σ = 5676392. Its totient is φ = 2838192.

The previous prime is 4257289. The next prime is 4257313. The reversal of 4257291 is 1927524.

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

It is not a de Polignac number, because 4257291 - 2¹ = 4257289 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 (4257221) 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, 709546 + ... + 709551.

It is an arithmetic number, because the mean of its divisors is an integer number (1419098).

Almost surely, 2^4257291 is an apocalyptic number.

4257291 is a deficient number, since it is larger than the sum of its proper divisors (1419101).

4257291 is a wasteful number, since it uses less digits than its factorization.

4257291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419100.

The product of its digits is 5040, while the sum is 30.

The square root of 4257291 is about 2063.3203822965. The cubic root of 4257291 is about 162.0731646347.

The spelling of 4257291 in words is "four million, two hundred fifty-seven thousand, two hundred ninety-one".