66093238 has 8 divisors (see below), whose sum is σ = 99174600. Its totient is φ = 33035040.

The previous prime is 66093199. The next prime is 66093239. The reversal of 66093238 is 83239066.

It is a happy number.

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

It is a super-2 number, since 2×66093238² = 8736632218649288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66093197 and 66093206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66093239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6958 + ... + 13438.

It is an arithmetic number, because the mean of its divisors is an integer number (12396825).

Almost surely, 2^66093238 is an apocalyptic number.

66093238 is a deficient number, since it is larger than the sum of its proper divisors (33081362).

66093238 is a wasteful number, since it uses less digits than its factorization.

66093238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 66093238 is about 8129.7747816283. The cubic root of 66093238 is about 404.3142141040.

The spelling of 66093238 in words is "sixty-six million, ninety-three thousand, two hundred thirty-eight".