65906677 has 2 divisors, whose sum is σ = 65906678. Its totient is φ = 65906676.

The previous prime is 65906653. The next prime is 65906681. The reversal of 65906677 is 77660956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64738116 + 1168561 = 8046^2 + 1081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65906677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65906177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32953338 + 32953339.

It is an arithmetic number, because the mean of its divisors is an integer number (32953339).

Almost surely, 2^65906677 is an apocalyptic number.

It is an amenable number.

65906677 is a deficient number, since it is larger than the sum of its proper divisors (1).

65906677 is an equidigital number, since it uses as much as digits as its factorization.

65906677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 65906677 is about 8118.2927392402. The cubic root of 65906677 is about 403.9334371434.

The spelling of 65906677 in words is "sixty-five million, nine hundred six thousand, six hundred seventy-seven".