3240891 has 12 divisors (see below), whose sum is σ = 4855032. Its totient is φ = 2160432.

The previous prime is 3240877. The next prime is 3240911. The reversal of 3240891 is 1980423.

It is not a de Polignac number, because 3240891 - 2¹¹ = 3238843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

3240891 is a modest number, since divided by 891 gives 324 as remainder.

3240891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3240841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6426 + ... + 6911.

It is an arithmetic number, because the mean of its divisors is an integer number (404586).

Almost surely, 2^3240891 is an apocalyptic number.

3240891 is a deficient number, since it is larger than the sum of its proper divisors (1614141).

3240891 is an equidigital number, since it uses as much as digits as its factorization.

3240891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13352 (or 13340 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3240891 is about 1800.2474829867. The cubic root of 3240891 is about 147.9862873830.

The spelling of 3240891 in words is "three million, two hundred forty thousand, eight hundred ninety-one".