3955578 has 32 divisors (see below), whose sum is σ = 8759232. Its totient is φ = 1180800.

The previous prime is 3955561. The next prime is 3955579. The reversal of 3955578 is 8755593.

It is a d-powerful number, because it can be written as 3¹³ + 9 + 5⁴ + 5⁸ + 5⁹ + 7⁵ + 8² .

It is not an unprimeable number, because it can be changed into a prime (3955579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4408 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (273726).

Almost surely, 2^3955578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3955578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4379616).

3955578 is an abundant number, since it is smaller than the sum of its proper divisors (4803654).

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

3955578 is a wasteful number, since it uses less digits than its factorization.

3955578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

The product of its digits is 189000, while the sum is 42.

The square root of 3955578 is about 1988.8634945617. The cubic root of 3955578 is about 158.1502869567.

The spelling of 3955578 in words is "three million, nine hundred fifty-five thousand, five hundred seventy-eight".