20630711 has 2 divisors, whose sum is σ = 20630712. Its totient is φ = 20630710.

The previous prime is 20630699. The next prime is 20630761. The reversal of 20630711 is 11703602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20630711 - 2⁶ = 20630647 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 (20630761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10315355 + 10315356.

It is an arithmetic number, because the mean of its divisors is an integer number (10315356).

Almost surely, 2^20630711 is an apocalyptic number.

20630711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20630711 is an equidigital number, since it uses as much as digits as its factorization.

20630711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20630711 is about 4542.1042480331. The cubic root of 20630711 is about 274.2656373909.

The spelling of 20630711 in words is "twenty million, six hundred thirty thousand, seven hundred eleven".