20482387 has 2 divisors, whose sum is σ = 20482388. Its totient is φ = 20482386.

The previous prime is 20482373. The next prime is 20482391. The reversal of 20482387 is 78328402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20482387 is a prime.

It is not a weakly prime, because it can be changed into another prime (20482307) 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 as a sum of consecutive naturals, namely, 10241193 + 10241194.

It is an arithmetic number, because the mean of its divisors is an integer number (10241194).

Almost surely, 2^20482387 is an apocalyptic number.

20482387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20482387 is an equidigital number, since it uses as much as digits as its factorization.

20482387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 20482387 is about 4525.7471206421. The cubic root of 20482387 is about 273.6067805152.

The spelling of 20482387 in words is "twenty million, four hundred eighty-two thousand, three hundred eighty-seven".