28097506 has 8 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 14032548.

The previous prime is 28097497. The next prime is 28097507. The reversal of 28097506 is 60579082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28097507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5806 + ... + 9481.

It is an arithmetic number, because the mean of its divisors is an integer number (5274360).

Almost surely, 2^28097506 is an apocalyptic number.

28097506 is a deficient number, since it is larger than the sum of its proper divisors (14097374).

28097506 is a wasteful number, since it uses less digits than its factorization.

28097506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16208.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 28097506 is about 5300.7080659097. The cubic root of 28097506 is about 304.0109717301.

The spelling of 28097506 in words is "twenty-eight million, ninety-seven thousand, five hundred six".