66836903 has 8 divisors (see below), whose sum is σ = 76455072. Its totient is φ = 57236256.

The previous prime is 66836881. The next prime is 66836933. The reversal of 66836903 is 30963866.

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

It is not a de Polignac number, because 66836903 - 2⁶ = 66836839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66836933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5201 + ... + 12677.

It is an arithmetic number, because the mean of its divisors is an integer number (9556884).

Almost surely, 2^66836903 is an apocalyptic number.

66836903 is a deficient number, since it is larger than the sum of its proper divisors (9618169).

66836903 is a wasteful number, since it uses less digits than its factorization.

66836903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 66836903 is about 8175.3839665180. The cubic root of 66836903 is about 405.8249769352.

The spelling of 66836903 in words is "sixty-six million, eight hundred thirty-six thousand, nine hundred three".