28486508 has 12 divisors (see below), whose sum is σ = 49918680. Its totient is φ = 14224032.

The previous prime is 28486501. The next prime is 28486517. The reversal of 28486508 is 80568482.

It is a super-2 number, since 2×28486508² = 1622962276068128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28486501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166 + ... + 7637.

It is an arithmetic number, because the mean of its divisors is an integer number (4159890).

Almost surely, 2^28486508 is an apocalyptic number.

It is an amenable number.

28486508 is a deficient number, since it is larger than the sum of its proper divisors (21432172).

28486508 is a wasteful number, since it uses less digits than its factorization.

28486508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616 (or 9614 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 28486508 is about 5337.2753348502. The cubic root of 28486508 is about 305.4075283337.

The spelling of 28486508 in words is "twenty-eight million, four hundred eighty-six thousand, five hundred eight".