28887327 has 16 divisors (see below), whose sum is σ = 48910080. Its totient is φ = 16506936.

The previous prime is 28887307. The next prime is 28887337. The reversal of 28887327 is 72378882.

It is not a de Polignac number, because 28887327 - 2¹⁶ = 28821791 is a prime.

It is a super-2 number, since 2×28887327² = 1668955322409858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28887307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76233 + ... + 76610.

It is an arithmetic number, because the mean of its divisors is an integer number (3056880).

Almost surely, 2^28887327 is an apocalyptic number.

28887327 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28887327 is a deficient number, since it is larger than the sum of its proper divisors (20022753).

28887327 is a wasteful number, since it uses less digits than its factorization.

28887327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152859 (or 152853 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 28887327 is about 5374.6932005464. The cubic root of 28887327 is about 306.8332728649.

The spelling of 28887327 in words is "twenty-eight million, eight hundred eighty-seven thousand, three hundred twenty-seven".