66893003 has 8 divisors (see below), whose sum is σ = 68819520. Its totient is φ = 64972800.

The previous prime is 66892999. The next prime is 66893051. The reversal of 66893003 is 30039866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66893003 - 2² = 66892999 is a prime.

It is a super-3 number, since 3×66893003³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66893063) 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 7 ways as a sum of consecutive naturals, for example, 27278 + ... + 29628.

It is an arithmetic number, because the mean of its divisors is an integer number (8602440).

Almost surely, 2^66893003 is an apocalyptic number.

66893003 is a deficient number, since it is larger than the sum of its proper divisors (1926517).

66893003 is a wasteful number, since it uses less digits than its factorization.

66893003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 66893003 is about 8178.8142783658. The cubic root of 66893003 is about 405.9384891485.

The spelling of 66893003 in words is "sixty-six million, eight hundred ninety-three thousand, three".