65464897 has 2 divisors, whose sum is σ = 65464898. Its totient is φ = 65464896.

The previous prime is 65464859. The next prime is 65464913. The reversal of 65464897 is 79846456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35093776 + 30371121 = 5924^2 + 5511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65464897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65464897.

It is not a weakly prime, because it can be changed into another prime (65264897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32732448 + 32732449.

It is an arithmetic number, because the mean of its divisors is an integer number (32732449).

Almost surely, 2^65464897 is an apocalyptic number.

It is an amenable number.

65464897 is a deficient number, since it is larger than the sum of its proper divisors (1).

65464897 is an equidigital number, since it uses as much as digits as its factorization.

65464897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 65464897 is about 8091.0380668985. The cubic root of 65464897 is about 403.0288756409.

The spelling of 65464897 in words is "sixty-five million, four hundred sixty-four thousand, eight hundred ninety-seven".