28376656 has 80 divisors (see below), whose sum is σ = 70852608. Its totient is φ = 10684800.

The previous prime is 28376639. The next prime is 28376659. The reversal of 28376656 is 65667382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28376659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37821 + ... + 38563.

Almost surely, 2^28376656 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 28376656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35426304).

28376656 is an abundant number, since it is smaller than the sum of its proper divisors (42475952).

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

28376656 is a wasteful number, since it uses less digits than its factorization.

28376656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 794 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 28376656 is about 5326.9743757597. The cubic root of 28376656 is about 305.0144434618.

The spelling of 28376656 in words is "twenty-eight million, three hundred seventy-six thousand, six hundred fifty-six".