66846337 has 2 divisors, whose sum is σ = 66846338. Its totient is φ = 66846336.

The previous prime is 66846331. The next prime is 66846343. The reversal of 66846337 is 73364866.

It is a balanced prime because it is at equal distance from previous prime (66846331) and next prime (66846343).

It can be written as a sum of positive squares in only one way, i.e., 64384576 + 2461761 = 8024^2 + 1569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66846337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66846293 and 66846302.

It is not a weakly prime, because it can be changed into another prime (66846331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33423168 + 33423169.

It is an arithmetic number, because the mean of its divisors is an integer number (33423169).

Almost surely, 2^66846337 is an apocalyptic number.

It is an amenable number.

66846337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66846337 is an equidigital number, since it uses as much as digits as its factorization.

66846337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 43.

The square root of 66846337 is about 8175.9609221180. The cubic root of 66846337 is about 405.8440700437.

The spelling of 66846337 in words is "sixty-six million, eight hundred forty-six thousand, three hundred thirty-seven".