65380897 has 2 divisors, whose sum is σ = 65380898. Its totient is φ = 65380896.

The previous prime is 65380849. The next prime is 65380943. The reversal of 65380897 is 79808356.

It is an a-pointer prime, because the next prime (65380943) can be obtained adding 65380897 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47665216 + 17715681 = 6904^2 + 4209^2 .

It is a cyclic number.

It is not a de Polignac number, because 65380897 - 2¹⁹ = 64856609 is a prime.

It is not a weakly prime, because it can be changed into another prime (65380817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32690448 + 32690449.

It is an arithmetic number, because the mean of its divisors is an integer number (32690449).

Almost surely, 2^65380897 is an apocalyptic number.

It is an amenable number.

65380897 is a deficient number, since it is larger than the sum of its proper divisors (1).

65380897 is an equidigital number, since it uses as much as digits as its factorization.

65380897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 65380897 is about 8085.8454721816. The cubic root of 65380897 is about 402.8564223246.

The spelling of 65380897 in words is "sixty-five million, three hundred eighty thousand, eight hundred ninety-seven".