28382671 has 2 divisors, whose sum is σ = 28382672. Its totient is φ = 28382670.

The previous prime is 28382647. The next prime is 28382693. The reversal of 28382671 is 17628382.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28382671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28382671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28382611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14191335 + 14191336.

It is an arithmetic number, because the mean of its divisors is an integer number (14191336).

Almost surely, 2^28382671 is an apocalyptic number.

28382671 is a deficient number, since it is larger than the sum of its proper divisors (1).

28382671 is an equidigital number, since it uses as much as digits as its factorization.

28382671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 28382671 is about 5327.5389252449. The cubic root of 28382671 is about 305.0359932440.

The spelling of 28382671 in words is "twenty-eight million, three hundred eighty-two thousand, six hundred seventy-one".