28269084 has 24 divisors (see below), whose sum is σ = 68236560. Its totient is φ = 9097984.

The previous prime is 28269077. The next prime is 28269091. The reversal of 28269084 is 48096282.

It is an interprime number because it is at equal distance from previous prime (28269077) and next prime (28269091).

It is a super-2 number, since 2×28269084² = 1598282220398112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40269 + ... + 40964.

It is an arithmetic number, because the mean of its divisors is an integer number (2843190).

Almost surely, 2^28269084 is an apocalyptic number.

It is an amenable number.

28269084 is an abundant number, since it is smaller than the sum of its proper divisors (39967476).

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

28269084 is a wasteful number, since it uses less digits than its factorization.

28269084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81269 (or 81267 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 28269084 is about 5316.8678749805. The cubic root of 28269084 is about 304.6285328043.

The spelling of 28269084 in words is "twenty-eight million, two hundred sixty-nine thousand, eighty-four".