28476045 has 24 divisors (see below), whose sum is σ = 53156376. Its totient is φ = 14018688.

The previous prime is 28476043. The next prime is 28476053. The reversal of 28476045 is 54067482.

28476045 is a `hidden beast` number, since 2 + 8 + 47 + 604 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 660969 + 27815076 = 813^2 + 5274^2 .

It is not a de Polignac number, because 28476045 - 2¹ = 28476043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28476043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23754 + ... + 24923.

It is an arithmetic number, because the mean of its divisors is an integer number (2214849).

Almost surely, 2^28476045 is an apocalyptic number.

It is an amenable number.

28476045 is a deficient number, since it is larger than the sum of its proper divisors (24680331).

28476045 is a wasteful number, since it uses less digits than its factorization.

28476045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48701 (or 48698 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 28476045 is about 5336.2950630564. The cubic root of 28476045 is about 305.3701320304.

The spelling of 28476045 in words is "twenty-eight million, four hundred seventy-six thousand, forty-five".