3253999 has 4 divisors (see below), whose sum is σ = 3718864. Its totient is φ = 2789136.

The previous prime is 3253981. The next prime is 3254023. The reversal of 3253999 is 9993523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9993523 = 23 ⋅434501.

It is not a de Polignac number, because 3253999 - 2⁵ = 3253967 is a prime.

It is a Duffinian number.

3253999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3253949) 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, 232422 + ... + 232435.

It is an arithmetic number, because the mean of its divisors is an integer number (929716).

Almost surely, 2^3253999 is an apocalyptic number.

3253999 is a deficient number, since it is larger than the sum of its proper divisors (464865).

3253999 is an equidigital number, since it uses as much as digits as its factorization.

3253999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464864.

The product of its digits is 65610, while the sum is 40.

The square root of 3253999 is about 1803.8844198008. The cubic root of 3253999 is about 148.1855324768.

The spelling of 3253999 in words is "three million, two hundred fifty-three thousand, nine hundred ninety-nine".