28365061 has 12 divisors (see below), whose sum is σ = 30644740. Its totient is φ = 26242560.

The previous prime is 28365059. The next prime is 28365083. The reversal of 28365061 is 16056382.

It can be written as a sum of positive squares in 6 ways, for example, as 2660161 + 25704900 = 1631^2 + 5070^2 .

It is not a de Polignac number, because 28365061 - 2¹ = 28365059 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28365041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16825 + ... + 18433.

Almost surely, 2^28365061 is an apocalyptic number.

It is an amenable number.

28365061 is a deficient number, since it is larger than the sum of its proper divisors (2279679).

28365061 is a wasteful number, since it uses less digits than its factorization.

28365061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 28365061 is about 5325.8859356918. The cubic root of 28365061 is about 304.9728937659.

The spelling of 28365061 in words is "twenty-eight million, three hundred sixty-five thousand, sixty-one".