28477827 has 48 divisors (see below), whose sum is σ = 50901760. Its totient is φ = 14976576.

The previous prime is 28477819. The next prime is 28477829. The reversal of 28477827 is 72877482.

It is not a de Polignac number, because 28477827 - 2³ = 28477819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28477829) 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 47 ways as a sum of consecutive naturals, for example, 43968 + ... + 44610.

Almost surely, 2^28477827 is an apocalyptic number.

28477827 is a deficient number, since it is larger than the sum of its proper divisors (22423933).

28477827 is a wasteful number, since it uses less digits than its factorization.

28477827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 709 counting only the distinct ones).

The product of its digits is 351232, while the sum is 45.

The square root of 28477827 is about 5336.4620302219. The cubic root of 28477827 is about 305.3765018080.

The spelling of 28477827 in words is "twenty-eight million, four hundred seventy-seven thousand, eight hundred twenty-seven".