3252991 has 8 divisors (see below), whose sum is σ = 3741824. Its totient is φ = 2770200.

The previous prime is 3252979. The next prime is 3253013. The reversal of 3252991 is 1992523.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 6-Lehmer number, since φ(3252991) divides (3252991-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 3252991 - 2⁷ = 3252863 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3252941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285 + ... + 2566.

It is an arithmetic number, because the mean of its divisors is an integer number (467728).

Almost surely, 2^3252991 is an apocalyptic number.

3252991 is the 1141-st heptagonal number.

3252991 is a deficient number, since it is larger than the sum of its proper divisors (488833).

3252991 is a wasteful number, since it uses less digits than its factorization.

3252991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021.

The product of its digits is 4860, while the sum is 31.

The square root of 3252991 is about 1803.6050011020. The cubic root of 3252991 is about 148.1702296199.

The spelling of 3252991 in words is "three million, two hundred fifty-two thousand, nine hundred ninety-one".