66703241 has 4 divisors (see below), whose sum is σ = 72767184. Its totient is φ = 60639300.

The previous prime is 66703229. The next prime is 66703261. The reversal of 66703241 is 14230766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66703241 - 2¹⁸ = 66441097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66703201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3031955 + ... + 3031976.

It is an arithmetic number, because the mean of its divisors is an integer number (18191796).

Almost surely, 2^66703241 is an apocalyptic number.

It is an amenable number.

66703241 is a deficient number, since it is larger than the sum of its proper divisors (6063943).

66703241 is a wasteful number, since it uses less digits than its factorization.

66703241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063942.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 66703241 is about 8167.2052135354. The cubic root of 66703241 is about 405.5542703100.

It can be divided in two parts, 66 and 703241, that added together give a palindrome (703307).

The spelling of 66703241 in words is "sixty-six million, seven hundred three thousand, two hundred forty-one".