20627473 has 2 divisors, whose sum is σ = 20627474. Its totient is φ = 20627472.

The previous prime is 20627471. The next prime is 20627489. The reversal of 20627473 is 37472602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20277009 + 350464 = 4503^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 20627473 - 2¹ = 20627471 is a prime.

Together with 20627471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20627471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10313736 + 10313737.

It is an arithmetic number, because the mean of its divisors is an integer number (10313737).

Almost surely, 2^20627473 is an apocalyptic number.

It is an amenable number.

20627473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20627473 is an equidigital number, since it uses as much as digits as its factorization.

20627473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 20627473 is about 4541.7477913244. The cubic root of 20627473 is about 274.2512879324.

The spelling of 20627473 in words is "twenty million, six hundred twenty-seven thousand, four hundred seventy-three".