66938098 has 8 divisors (see below), whose sum is σ = 100556208. Its totient is φ = 33419364.

The previous prime is 66938093. The next prime is 66938107. The reversal of 66938098 is 89083966.

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

It is not an unprimeable number, because it can be changed into a prime (66938093) 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, 23136 + ... + 25867.

It is an arithmetic number, because the mean of its divisors is an integer number (12569526).

Almost surely, 2^66938098 is an apocalyptic number.

66938098 is a deficient number, since it is larger than the sum of its proper divisors (33618110).

66938098 is a wasteful number, since it uses less digits than its factorization.

66938098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49688.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 66938098 is about 8181.5706316086. The cubic root of 66938098 is about 406.0296879453.

The spelling of 66938098 in words is "sixty-six million, nine hundred thirty-eight thousand, ninety-eight".