4258991 has 8 divisors (see below), whose sum is σ = 4664784. Its totient is φ = 3856320.

The previous prime is 4258987. The next prime is 4259053. The reversal of 4258991 is 1998524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4258991 - 2² = 4258987 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4258951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825 + ... + 4061.

It is an arithmetic number, because the mean of its divisors is an integer number (583098).

Almost surely, 2^4258991 is an apocalyptic number.

4258991 is a deficient number, since it is larger than the sum of its proper divisors (405793).

4258991 is a wasteful number, since it uses less digits than its factorization.

4258991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its digits is 25920, while the sum is 38.

The square root of 4258991 is about 2063.7322985310. The cubic root of 4258991 is about 162.0947345105.

The spelling of 4258991 in words is "four million, two hundred fifty-eight thousand, nine hundred ninety-one".