28097526 has 32 divisors (see below), whose sum is σ = 57736800. Its totient is φ = 9112064.

The previous prime is 28097521. The next prime is 28097527. The reversal of 28097526 is 62579082.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28097521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47086 + ... + 47678.

It is an arithmetic number, because the mean of its divisors is an integer number (1804275).

Almost surely, 2^28097526 is an apocalyptic number.

28097526 is an abundant number, since it is smaller than the sum of its proper divisors (29639274).

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

28097526 is a wasteful number, since it uses less digits than its factorization.

28097526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 28097526 is about 5300.7099524498. The cubic root of 28097526 is about 304.0110438624.

The spelling of 28097526 in words is "twenty-eight million, ninety-seven thousand, five hundred twenty-six".