28827090 has 48 divisors (see below), whose sum is σ = 77732928. Its totient is φ = 7686576.

The previous prime is 28827077. The next prime is 28827109. The reversal of 28827090 is 9072882.

It is a super-2 number, since 2×28827090² = 1662002235736200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3502 + ... + 8361.

It is an arithmetic number, because the mean of its divisors is an integer number (1619436).

Almost surely, 2^28827090 is an apocalyptic number.

28827090 is an abundant number, since it is smaller than the sum of its proper divisors (48905838).

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

28827090 is a wasteful number, since it uses less digits than its factorization.

28827090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11885 (or 11873 counting only the distinct ones).

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

The square root of 28827090 is about 5369.0865144827. The cubic root of 28827090 is about 306.6198508139.

The spelling of 28827090 in words is "twenty-eight million, eight hundred twenty-seven thousand, ninety".