20630767 has 2 divisors, whose sum is σ = 20630768. Its totient is φ = 20630766.

The previous prime is 20630761. The next prime is 20630773. The reversal of 20630767 is 76703602.

It is a balanced prime because it is at equal distance from previous prime (20630761) and next prime (20630773).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20630767 is a prime.

It is a plaindrome in base 16.

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, 10315383 + 10315384.

It is an arithmetic number, because the mean of its divisors is an integer number (10315384).

Almost surely, 2^20630767 is an apocalyptic number.

20630767 is a deficient number, since it is larger than the sum of its proper divisors (1).

20630767 is an equidigital number, since it uses as much as digits as its factorization.

20630767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 20630767 is about 4542.1104125726. The cubic root of 20630767 is about 274.2658855463.

The spelling of 20630767 in words is "twenty million, six hundred thirty thousand, seven hundred sixty-seven".