28660996 has 48 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 11168640.

The previous prime is 28660991. The next prime is 28660999. The reversal of 28660996 is 69906682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28660991) 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 in 15 ways as a sum of consecutive naturals, for example, 25290 + ... + 26398.

It is an arithmetic number, because the mean of its divisors is an integer number (1305360).

Almost surely, 2^28660996 is an apocalyptic number.

28660996 is a gapful number since it is divisible by the number (26) 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 28660996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31328640).

28660996 is an abundant number, since it is smaller than the sum of its proper divisors (33996284).

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

28660996 is a wasteful number, since it uses less digits than its factorization.

28660996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 28660996 is about 5353.5965481160. The cubic root of 28660996 is about 306.0298289232.

The spelling of 28660996 in words is "twenty-eight million, six hundred sixty thousand, nine hundred ninety-six".