3253991 has 4 divisors (see below), whose sum is σ = 3504312. Its totient is φ = 3003672.

The previous prime is 3253981. The next prime is 3254023. The reversal of 3253991 is 1993523.

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 3253991 - 2¹⁴ = 3237607 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 (3253961) 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 3 ways as a sum of consecutive naturals, for example, 125141 + ... + 125166.

It is an arithmetic number, because the mean of its divisors is an integer number (876078).

Almost surely, 2^3253991 is an apocalyptic number.

3253991 is a deficient number, since it is larger than the sum of its proper divisors (250321).

3253991 is a wasteful number, since it uses less digits than its factorization.

3253991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250320.

The product of its digits is 7290, while the sum is 32.

The square root of 3253991 is about 1803.8822023624. The cubic root of 3253991 is about 148.1854110379.

The spelling of 3253991 in words is "three million, two hundred fifty-three thousand, nine hundred ninety-one".