28466487 has 24 divisors (see below), whose sum is σ = 48615840. Its totient is φ = 15704640.

The previous prime is 28466467. The next prime is 28466489. The reversal of 28466487 is 78466482.

It is not a de Polignac number, because 28466487 - 2⁷ = 28466359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28466489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5964 + ... + 9617.

It is an arithmetic number, because the mean of its divisors is an integer number (2025660).

Almost surely, 2^28466487 is an apocalyptic number.

28466487 is a deficient number, since it is larger than the sum of its proper divisors (20149353).

28466487 is a wasteful number, since it uses less digits than its factorization.

28466487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15623 (or 15620 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 28466487 is about 5335.3994227237. The cubic root of 28466487 is about 305.3359623234.

The spelling of 28466487 in words is "twenty-eight million, four hundred sixty-six thousand, four hundred eighty-seven".