38821966 has 8 divisors (see below), whose sum is σ = 58555224. Its totient is φ = 19303560.

The previous prime is 38821963. The next prime is 38821969. The reversal of 38821966 is 66912883.

It is an interprime number because it is at equal distance from previous prime (38821963) and next prime (38821969).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38821961) 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, 53260 + ... + 53983.

It is an arithmetic number, because the mean of its divisors is an integer number (7319403).

Almost surely, 2^38821966 is an apocalyptic number.

38821966 is a deficient number, since it is larger than the sum of its proper divisors (19733258).

38821966 is a wasteful number, since it uses less digits than its factorization.

38821966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107426.

The product of its digits is 124416, while the sum is 43.

The square root of 38821966 is about 6230.7275658626. The cubic root of 38821966 is about 338.6043306454.

The spelling of 38821966 in words is "thirty-eight million, eight hundred twenty-one thousand, nine hundred sixty-six".