4025999 has 2 divisors, whose sum is σ = 4026000. Its totient is φ = 4025998.

The previous prime is 4025993. The next prime is 4026017. The reversal of 4025999 is 9995204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4025999 - 2⁸ = 4025743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4025993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012999 + 2013000.

It is an arithmetic number, because the mean of its divisors is an integer number (2013000).

Almost surely, 2^4025999 is an apocalyptic number.

4025999 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025999 is an equidigital number, since it uses as much as digits as its factorization.

4025999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 4025999 is about 2006.4892224978. The cubic root of 4025999 is about 159.0832864029.

The spelling of 4025999 in words is "four million, twenty-five thousand, nine hundred ninety-nine".