20270097 has 6 divisors (see below), whose sum is σ = 29279042. Its totient is φ = 13513392.

The previous prime is 20270083. The next prime is 20270119. The reversal of 20270097 is 79007202.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 7568001 = 3564^2 + 2751^2 .

It is not a de Polignac number, because 20270097 - 2⁸ = 20269841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20270097.

It is not an unprimeable number, because it can be changed into a prime (20270027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1126108 + ... + 1126125.

Almost surely, 2^20270097 is an apocalyptic number.

It is an amenable number.

20270097 is a deficient number, since it is larger than the sum of its proper divisors (9008945).

20270097 is a wasteful number, since it uses less digits than its factorization.

20270097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252239 (or 2252236 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 20270097 is about 4502.2324462426. The cubic root of 20270097 is about 272.6582286737.

Adding to 20270097 its reverse (79007202), we get a palindrome (99277299).

The spelling of 20270097 in words is "twenty million, two hundred seventy thousand, ninety-seven".