4537656 has 96 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 1373760.

The previous prime is 4537633. The next prime is 4537669. The reversal of 4537656 is 6567354.

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

It is a d-powerful number, because it can be written as 4⁵ + 5⁷ + 3⁷ + 7⁷ + 6² + 5⁹ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 4537656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42355 + ... + 42461.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

Almost surely, 2^4537656 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 4537656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6739200).

4537656 is an abundant number, since it is smaller than the sum of its proper divisors (8940744).

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

4537656 is a wasteful number, since it uses less digits than its factorization.

4537656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 162 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 4537656 is about 2130.1774573964. The cubic root of 4537656 is about 165.5555926576. Note that the first 4 decimals are identical.

The spelling of 4537656 in words is "four million, five hundred thirty-seven thousand, six hundred fifty-six".