28868361 has 16 divisors (see below), whose sum is σ = 39278016. Its totient is φ = 18855936.

The previous prime is 28868341. The next prime is 28868377. The reversal of 28868361 is 16386882.

It is not a de Polignac number, because 28868361 - 2⁹ = 28867849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28868321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41926 + ... + 42608.

It is an arithmetic number, because the mean of its divisors is an integer number (2454876).

Almost surely, 2^28868361 is an apocalyptic number.

It is an amenable number.

28868361 is a deficient number, since it is larger than the sum of its proper divisors (10409655).

28868361 is a wasteful number, since it uses less digits than its factorization.

28868361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its digits is 110592, while the sum is 42.

The square root of 28868361 is about 5372.9285310713. The cubic root of 28868361 is about 306.7661076117.

The spelling of 28868361 in words is "twenty-eight million, eight hundred sixty-eight thousand, three hundred sixty-one".