4249999 has 4 divisors (see below), whose sum is σ = 4576936. Its totient is φ = 3923064.

The previous prime is 4249981. The next prime is 4250021. The reversal of 4249999 is 9999424.

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 4249999 - 2⁵ = 4249967 is a prime.

4249999 is a modest number, since divided by 9999 gives 424 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4249969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163449 + ... + 163474.

It is an arithmetic number, because the mean of its divisors is an integer number (1144234).

Almost surely, 2^4249999 is an apocalyptic number.

4249999 is a deficient number, since it is larger than the sum of its proper divisors (326937).

4249999 is a wasteful number, since it uses less digits than its factorization.

4249999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326936.

The product of its digits is 209952, while the sum is 46.

The square root of 4249999 is about 2061.5525702732. The cubic root of 4249999 is about 161.9805773595.

The spelling of 4249999 in words is "four million, two hundred forty-nine thousand, nine hundred ninety-nine".