64208897 has 2 divisors, whose sum is σ = 64208898. Its totient is φ = 64208896.

The previous prime is 64208887. The next prime is 64208941. The reversal of 64208897 is 79880246.

It is an a-pointer prime, because the next prime (64208941) can be obtained adding 64208897 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49224256 + 14984641 = 7016^2 + 3871^2 .

It is a cyclic number.

It is not a de Polignac number, because 64208897 - 2¹⁰ = 64207873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64208867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32104448 + 32104449.

It is an arithmetic number, because the mean of its divisors is an integer number (32104449).

It is a Proth number, since it is equal to 3919 ⋅ 2¹⁴ + 1 and 3919 < 2¹⁴.

Almost surely, 2^64208897 is an apocalyptic number.

It is an amenable number.

64208897 is a deficient number, since it is larger than the sum of its proper divisors (1).

64208897 is an equidigital number, since it uses as much as digits as its factorization.

64208897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 64208897 is about 8013.0454260537. The cubic root of 64208897 is about 400.4347294380.

The spelling of 64208897 in words is "sixty-four million, two hundred eight thousand, eight hundred ninety-seven".