28650656 has 12 divisors (see below), whose sum is σ = 56406042. Its totient is φ = 14325312.

The previous prime is 28650653. The next prime is 28650659. The reversal of 28650656 is 65605682.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28650653) and next prime (28650659).

It can be written as a sum of positive squares in only one way, i.e., 16679056 + 11971600 = 4084^2 + 3460^2 .

It is not an unprimeable number, because it can be changed into a prime (28650653) by changing a digit.

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 as a sum of consecutive naturals, namely, 447635 + ... + 447698.

Almost surely, 2^28650656 is an apocalyptic number.

It is an amenable number.

28650656 is a deficient number, since it is larger than the sum of its proper divisors (27755386).

28650656 is an equidigital number, since it uses as much as digits as its factorization.

28650656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895343 (or 895335 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 28650656 is about 5352.6307550587. The cubic root of 28650656 is about 305.9930224675.

The spelling of 28650656 in words is "twenty-eight million, six hundred fifty thousand, six hundred fifty-six".