20470627 has 2 divisors, whose sum is σ = 20470628. Its totient is φ = 20470626.

The previous prime is 20470573. The next prime is 20470651. The reversal of 20470627 is 72607402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20470627 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20470595 and 20470604.

It is not a weakly prime, because it can be changed into another prime (20470727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10235313 + 10235314.

It is an arithmetic number, because the mean of its divisors is an integer number (10235314).

Almost surely, 2^20470627 is an apocalyptic number.

20470627 is a deficient number, since it is larger than the sum of its proper divisors (1).

20470627 is an equidigital number, since it uses as much as digits as its factorization.

20470627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 20470627 is about 4524.4477011012. The cubic root of 20470627 is about 273.5544065457.

The spelling of 20470627 in words is "twenty million, four hundred seventy thousand, six hundred twenty-seven".