65298977 has 2 divisors, whose sum is σ = 65298978. Its totient is φ = 65298976.

The previous prime is 65298967. The next prime is 65298979. The reversal of 65298977 is 77989256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62473216 + 2825761 = 7904^2 + 1681^2 .

It is a cyclic number.

It is not a de Polignac number, because 65298977 - 2¹² = 65294881 is a prime.

Together with 65298979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65298979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32649488 + 32649489.

It is an arithmetic number, because the mean of its divisors is an integer number (32649489).

Almost surely, 2^65298977 is an apocalyptic number.

It is an amenable number.

65298977 is a deficient number, since it is larger than the sum of its proper divisors (1).

65298977 is an equidigital number, since it uses as much as digits as its factorization.

65298977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 65298977 is about 8080.7782422240. The cubic root of 65298977 is about 402.6880969539.

The spelling of 65298977 in words is "sixty-five million, two hundred ninety-eight thousand, nine hundred seventy-seven".