28816371 has 16 divisors (see below), whose sum is σ = 42804000. Its totient is φ = 19160064.

The previous prime is 28816357. The next prime is 28816373. The reversal of 28816371 is 17361882.

28816371 is a `hidden beast` number, since 288 + 1 + 6 + 371 = 666.

It is not a de Polignac number, because 28816371 - 2¹⁷ = 28685299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28816373) 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, 10935 + ... + 13311.

It is an arithmetic number, because the mean of its divisors is an integer number (2675250).

Almost surely, 2^28816371 is an apocalyptic number.

28816371 is a deficient number, since it is larger than the sum of its proper divisors (13987629).

28816371 is a wasteful number, since it uses less digits than its factorization.

28816371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835 (or 2829 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 28816371 is about 5368.0882071739. The cubic root of 28816371 is about 306.5818418250.

The spelling of 28816371 in words is "twenty-eight million, eight hundred sixteen thousand, three hundred seventy-one".