28539376 has 10 divisors (see below), whose sum is σ = 55295072. Its totient is φ = 14269680.

The previous prime is 28539359. The next prime is 28539383. The reversal of 28539376 is 67393582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891840 + ... + 891871.

Almost surely, 2^28539376 is an apocalyptic number.

It is an amenable number.

28539376 is a deficient number, since it is larger than the sum of its proper divisors (26755696).

28539376 is a wasteful number, since it uses less digits than its factorization.

28539376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783719 (or 1783713 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 28539376 is about 5342.2257533728. The cubic root of 28539376 is about 305.5963464563.

The spelling of 28539376 in words is "twenty-eight million, five hundred thirty-nine thousand, three hundred seventy-six".