28352477 has 2 divisors, whose sum is σ = 28352478. Its totient is φ = 28352476.

The previous prime is 28352453. The next prime is 28352483. The reversal of 28352477 is 77425382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28026436 + 326041 = 5294^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 28352477 - 2¹⁸ = 28090333 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28352477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28352377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14176238 + 14176239.

It is an arithmetic number, because the mean of its divisors is an integer number (14176239).

Almost surely, 2^28352477 is an apocalyptic number.

It is an amenable number.

28352477 is a deficient number, since it is larger than the sum of its proper divisors (1).

28352477 is an equidigital number, since it uses as much as digits as its factorization.

28352477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 38.

The square root of 28352477 is about 5324.7044049412. The cubic root of 28352477 is about 304.9277872577.

The spelling of 28352477 in words is "twenty-eight million, three hundred fifty-two thousand, four hundred seventy-seven".