28207088 has 40 divisors (see below), whose sum is σ = 67266528. Its totient is φ = 11158272.

The previous prime is 28207087. The next prime is 28207099. The reversal of 28207088 is 88070282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28207087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8231 + ... + 11142.

Almost surely, 2^28207088 is an apocalyptic number.

28207088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28207088 is an abundant number, since it is smaller than the sum of its proper divisors (39059440).

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

28207088 is a wasteful number, since it uses less digits than its factorization.

28207088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19401 (or 19395 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 28207088 is about 5311.0345508196. The cubic root of 28207088 is about 304.4056795361.

It can be divided in two parts, 28 and 207088, that multiplied together give a square (5798464 = 2408²).

The spelling of 28207088 in words is "twenty-eight million, two hundred seven thousand, eighty-eight".