3425664 has 64 divisors (see below), whose sum is σ = 9938880. Its totient is φ = 1036800.

The previous prime is 3425663. The next prime is 3425693. The reversal of 3425664 is 4665243.

It is a tau number, because it is divible by the number of its divisors (64).

It is a d-powerful number, because it can be written as 3¹³ + 4⁴ + 2⁵ + 5⁷ + 6⁵ + 6⁸ + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3425663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3819 + ... + 4629.

It is an arithmetic number, because the mean of its divisors is an integer number (155295).

Almost surely, 2^3425664 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 3425664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4969440).

3425664 is an abundant number, since it is smaller than the sum of its proper divisors (6513216).

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

3425664 is a wasteful number, since it uses less digits than its factorization.

3425664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 827 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 3425664 is about 1850.8549375897. The cubic root of 3425664 is about 150.7468530100.

It can be divided in two parts, 342 and 5664, that added together give a palindrome (6006).

The spelling of 3425664 in words is "three million, four hundred twenty-five thousand, six hundred sixty-four".