28037065 has 36 divisors (see below), whose sum is σ = 41436036. Its totient is φ = 18156096.

The previous prime is 28037059. The next prime is 28037099. The reversal of 28037065 is 56073082.

It can be written as a sum of positive squares in 2 ways, for example, as 5112121 + 22924944 = 2261^2 + 4788^2 .

It is not a de Polignac number, because 28037065 - 2³ = 28037057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 88287 + ... + 88603.

It is an arithmetic number, because the mean of its divisors is an integer number (1151001).

Almost surely, 2^28037065 is an apocalyptic number.

It is an amenable number.

28037065 is a deficient number, since it is larger than the sum of its proper divisors (13398971).

28037065 is a wasteful number, since it uses less digits than its factorization.

28037065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 28037065 is about 5295.0037771469. The cubic root of 28037065 is about 303.7928275965.

The spelling of 28037065 in words is "twenty-eight million, thirty-seven thousand, sixty-five".