28496477 has 2 divisors, whose sum is σ = 28496478. Its totient is φ = 28496476.

The previous prime is 28496467. The next prime is 28496497. The reversal of 28496477 is 77469482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26822041 + 1674436 = 5179^2 + 1294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28496477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28496407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14248238 + 14248239.

It is an arithmetic number, because the mean of its divisors is an integer number (14248239).

Almost surely, 2^28496477 is an apocalyptic number.

It is an amenable number.

28496477 is a deficient number, since it is larger than the sum of its proper divisors (1).

28496477 is an equidigital number, since it uses as much as digits as its factorization.

28496477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 28496477 is about 5338.2091566367. The cubic root of 28496477 is about 305.4431504904.

The spelling of 28496477 in words is "twenty-eight million, four hundred ninety-six thousand, four hundred seventy-seven".