3249881 has 4 divisors (see below), whose sum is σ = 3255552. Its totient is φ = 3244212.

The previous prime is 3249871. The next prime is 3249889. The reversal of 3249881 is 1889423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3249881 - 2¹⁸ = 2987737 is a prime.

It is a super-2 number, since 2×3249881² = 21123453028322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3249889) 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, 1865 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (813888).

Almost surely, 2^3249881 is an apocalyptic number.

It is an amenable number.

3249881 is a deficient number, since it is larger than the sum of its proper divisors (5671).

3249881 is an equidigital number, since it uses as much as digits as its factorization.

3249881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670.

The product of its digits is 13824, while the sum is 35.

The square root of 3249881 is about 1802.7426327682. The cubic root of 3249881 is about 148.1229955161.

The spelling of 3249881 in words is "three million, two hundred forty-nine thousand, eight hundred eighty-one".