28523576 has 8 divisors (see below), whose sum is σ = 53481720. Its totient is φ = 14261784.

The previous prime is 28523567. The next prime is 28523581. The reversal of 28523576 is 67532582.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1782716 + ... + 1782731.

It is an arithmetic number, because the mean of its divisors is an integer number (6685215).

Almost surely, 2^28523576 is an apocalyptic number.

It is an amenable number.

28523576 is a deficient number, since it is larger than the sum of its proper divisors (24958144).

28523576 is a wasteful number, since it uses less digits than its factorization.

28523576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565453 (or 3565449 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 28523576 is about 5340.7467642643. The cubic root of 28523576 is about 305.5399411868.

The spelling of 28523576 in words is "twenty-eight million, five hundred twenty-three thousand, five hundred seventy-six".