3243870 has 96 divisors (see below), whose sum is σ = 10183680. Its totient is φ = 699840.

The previous prime is 3243859. The next prime is 3243881. The reversal of 3243870 is 783423.

3243870 = T₁₅₁ + T₁₅₂ + ... + T₂₈₃.

It is an interprime number because it is at equal distance from previous prime (3243859) and next prime (3243881).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11835 + ... + 12105.

It is an arithmetic number, because the mean of its divisors is an integer number (106080).

Almost surely, 2^3243870 is an apocalyptic number.

3243870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3243870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5091840).

3243870 is an abundant number, since it is smaller than the sum of its proper divisors (6939810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3243870 is a wasteful number, since it uses less digits than its factorization.

3243870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3243870 is about 1801.0746791846. The cubic root of 3243870 is about 148.0316160847.

The spelling of 3243870 in words is "three million, two hundred forty-three thousand, eight hundred seventy".