3934656 has 168 divisors, whose sum is σ = 13313664. Its totient is φ = 1140480.

The previous prime is 3934639. The next prime is 3934669. The reversal of 3934656 is 6564393.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3934656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171061 + ... + 171083.

It is an arithmetic number, because the mean of its divisors is an integer number (79248).

Almost surely, 2^3934656 is an apocalyptic number.

3934656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3934656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6656832).

3934656 is an abundant number, since it is smaller than the sum of its proper divisors (9379008).

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

3934656 is a wasteful number, since it uses less digits than its factorization.

3934656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 39 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3934656 is about 1983.5967332097. The cubic root of 3934656 is about 157.8709623151.

The spelling of 3934656 in words is "three million, nine hundred thirty-four thousand, six hundred fifty-six".