6453656 has 48 divisors (see below), whose sum is σ = 13645800. Its totient is φ = 2858240.

The previous prime is 6453649. The next prime is 6453661. The reversal of 6453656 is 6563546.

6453656 = T₁₇₈ + T₁₇₉ + ... + T₃₅₃.

Its product of digits (64800) is a multiple of the sum of its prime factors (200).

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 11 ways as a sum of consecutive naturals, for example, 57056 + ... + 57168.

Almost surely, 2^6453656 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 6453656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6822900).

6453656 is an abundant number, since it is smaller than the sum of its proper divisors (7192144).

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

6453656 is a wasteful number, since it uses less digits than its factorization.

6453656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 185 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 6453656 is about 2540.4046921701. The cubic root of 6453656 is about 186.1809623563.

It can be divided in two parts, 64536 and 56, that multiplied together give a triangular number (3614016 = T₂₆₈₈).

The spelling of 6453656 in words is "six million, four hundred fifty-three thousand, six hundred fifty-six".