66314929 has 2 divisors, whose sum is σ = 66314930. Its totient is φ = 66314928.

The previous prime is 66314887. The next prime is 66314939. The reversal of 66314929 is 92941366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 4613904 = 7855^2 + 2148^2 .

It is a cyclic number.

It is not a de Polignac number, because 66314929 - 2¹¹ = 66312881 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 66314891 and 66314900.

It is not a weakly prime, because it can be changed into another prime (66314939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33157464 + 33157465.

It is an arithmetic number, because the mean of its divisors is an integer number (33157465).

Almost surely, 2^66314929 is an apocalyptic number.

It is an amenable number.

66314929 is a deficient number, since it is larger than the sum of its proper divisors (1).

66314929 is an equidigital number, since it uses as much as digits as its factorization.

66314929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 66314929 is about 8143.3978780359. The cubic root of 66314929 is about 404.7657620260.

The spelling of 66314929 in words is "sixty-six million, three hundred fourteen thousand, nine hundred twenty-nine".