3965800 has 48 divisors (see below), whose sum is σ = 9374400. Its totient is φ = 1560000.

The previous prime is 3965789. The next prime is 3965827. The reversal of 3965800 is 85693.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15675 + ... + 15925.

It is an arithmetic number, because the mean of its divisors is an integer number (195300).

Almost surely, 2^3965800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3965800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4687200).

3965800 is an abundant number, since it is smaller than the sum of its proper divisors (5408600).

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

3965800 is a wasteful number, since it uses less digits than its factorization.

3965800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 3965800 is about 1991.4316458267. The cubic root of 3965800 is about 158.2864003709.

The spelling of 3965800 in words is "three million, nine hundred sixty-five thousand, eight hundred".