38858966 has 4 divisors (see below), whose sum is σ = 58288452. Its totient is φ = 19429482.

The previous prime is 38858947. The next prime is 38858969. The reversal of 38858966 is 66985883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×38858966³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38858969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9714740 + ... + 9714743.

It is an arithmetic number, because the mean of its divisors is an integer number (14572113).

Almost surely, 2^38858966 is an apocalyptic number.

38858966 is a deficient number, since it is larger than the sum of its proper divisors (19429486).

38858966 is a wasteful number, since it uses less digits than its factorization.

38858966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19429485.

The product of its digits is 2488320, while the sum is 53.

The square root of 38858966 is about 6233.6960144043. The cubic root of 38858966 is about 338.7118675504.

The spelling of 38858966 in words is "thirty-eight million, eight hundred fifty-eight thousand, nine hundred sixty-six".