20264077 has 2 divisors, whose sum is σ = 20264078. Its totient is φ = 20264076.

The previous prime is 20264047. The next prime is 20264087. The reversal of 20264077 is 77046202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 8934121 = 3366^2 + 2989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20264077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20264047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132038 + 10132039.

It is an arithmetic number, because the mean of its divisors is an integer number (10132039).

Almost surely, 2^20264077 is an apocalyptic number.

It is an amenable number.

20264077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20264077 is an equidigital number, since it uses as much as digits as its factorization.

20264077 is an evil number, because the sum of its binary digits is even.

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

The square root of 20264077 is about 4501.5638393785. The cubic root of 20264077 is about 272.6312338176.

The spelling of 20264077 in words is "twenty million, two hundred sixty-four thousand, seventy-seven".