66952007 has 2 divisors, whose sum is σ = 66952008. Its totient is φ = 66952006.

The previous prime is 66952003. The next prime is 66952021. The reversal of 66952007 is 70025966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66952007 - 2² = 66952003 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66952003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33476003 + 33476004.

It is an arithmetic number, because the mean of its divisors is an integer number (33476004).

Almost surely, 2^66952007 is an apocalyptic number.

66952007 is a deficient number, since it is larger than the sum of its proper divisors (1).

66952007 is an equidigital number, since it uses as much as digits as its factorization.

66952007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 66952007 is about 8182.4206076197. The cubic root of 66952007 is about 406.0578088310.

The spelling of 66952007 in words is "sixty-six million, nine hundred fifty-two thousand, seven".