20272597 has 2 divisors, whose sum is σ = 20272598. Its totient is φ = 20272596.

The previous prime is 20272589. The next prime is 20272607. The reversal of 20272597 is 79527202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 3837681 = 4054^2 + 1959^2 .

It is a cyclic number.

It is not a de Polignac number, because 20272597 - 2³ = 20272589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20272547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10136298 + 10136299.

It is an arithmetic number, because the mean of its divisors is an integer number (10136299).

Almost surely, 2^20272597 is an apocalyptic number.

It is an amenable number.

20272597 is a deficient number, since it is larger than the sum of its proper divisors (1).

20272597 is an equidigital number, since it uses as much as digits as its factorization.

20272597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 20272597 is about 4502.5100777233. The cubic root of 20272597 is about 272.6694375914.

Adding to 20272597 its reverse (79527202), we get a palindrome (99799799).

It can be divided in two parts, 2027 and 2597, that added together give a square (4624 = 68²).

The spelling of 20272597 in words is "twenty million, two hundred seventy-two thousand, five hundred ninety-seven".