28488316 has 6 divisors (see below), whose sum is σ = 49854560. Its totient is φ = 14244156.

The previous prime is 28488301. The next prime is 28488319. The reversal of 28488316 is 61388482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28488319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3561036 + ... + 3561043.

Almost surely, 2^28488316 is an apocalyptic number.

It is an amenable number.

28488316 is a deficient number, since it is larger than the sum of its proper divisors (21366244).

28488316 is a wasteful number, since it uses less digits than its factorization.

28488316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122083 (or 7122081 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 28488316 is about 5337.4447069736. Note that the first 3 decimals coincide. The cubic root of 28488316 is about 305.4139894641.

The spelling of 28488316 in words is "twenty-eight million, four hundred eighty-eight thousand, three hundred sixteen".