4256999 has 4 divisors (see below), whose sum is σ = 4262160. Its totient is φ = 4251840.

The previous prime is 4256981. The next prime is 4257017. The reversal of 4256999 is 9996524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (4256981) and next prime (4257017).

It is a cyclic number.

It is not a de Polignac number, because 4256999 - 2¹⁶ = 4191463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256929) 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, 1034 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (1065540).

Almost surely, 2^4256999 is an apocalyptic number.

4256999 is a deficient number, since it is larger than the sum of its proper divisors (5161).

4256999 is a wasteful number, since it uses less digits than its factorization.

4256999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160.

The product of its digits is 174960, while the sum is 44.

The square root of 4256999 is about 2063.2496213498. The cubic root of 4256999 is about 162.0694591135.

The spelling of 4256999 in words is "four million, two hundred fifty-six thousand, nine hundred ninety-nine".