28486808 has 16 divisors (see below), whose sum is σ = 61043280. Its totient is φ = 12208608.

The previous prime is 28486771. The next prime is 28486819. The reversal of 28486808 is 80868482.

It is a super-2 number, since 2×28486808² = 1622996460057728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254291 + ... + 254402.

It is an arithmetic number, because the mean of its divisors is an integer number (3815205).

Almost surely, 2^28486808 is an apocalyptic number.

28486808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28486808 is an abundant number, since it is smaller than the sum of its proper divisors (32556472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28486808 is a wasteful number, since it uses less digits than its factorization.

28486808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508706 (or 508702 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 28486808 is about 5337.3034390036. The cubic root of 28486808 is about 305.4086004428.

The spelling of 28486808 in words is "twenty-eight million, four hundred eighty-six thousand, eight hundred eight".