20764097 has 2 divisors, whose sum is σ = 20764098. Its totient is φ = 20764096.

The previous prime is 20764091. The next prime is 20764103. The reversal of 20764097 is 79046702.

It is a balanced prime because it is at equal distance from previous prime (20764091) and next prime (20764103).

It can be written as a sum of positive squares in only one way, i.e., 17774656 + 2989441 = 4216^2 + 1729^2 .

It is a cyclic number.

It is not a de Polignac number, because 20764097 - 2¹² = 20760001 is a prime.

It is a super-2 number, since 2×20764097² = 862295448450818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20764091) 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, 10382048 + 10382049.

It is an arithmetic number, because the mean of its divisors is an integer number (10382049).

Almost surely, 2^20764097 is an apocalyptic number.

It is an amenable number.

20764097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20764097 is an equidigital number, since it uses as much as digits as its factorization.

20764097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20764097 is about 4556.7638736279. The cubic root of 20764097 is about 274.8554479974.

The spelling of 20764097 in words is "twenty million, seven hundred sixty-four thousand, ninety-seven".