38663949 has 8 divisors (see below), whose sum is σ = 51603552. Its totient is φ = 25750160.

The previous prime is 38663843. The next prime is 38663957. The reversal of 38663949 is 94936683.

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

It is a cyclic number.

It is not a de Polignac number, because 38663949 - 2⁸ = 38663693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38663898 and 38663907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38663959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (6450444).

Almost surely, 2^38663949 is an apocalyptic number.

It is an amenable number.

38663949 is a deficient number, since it is larger than the sum of its proper divisors (12939603).

38663949 is a wasteful number, since it uses less digits than its factorization.

38663949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12907.

The product of its digits is 839808, while the sum is 48.

The square root of 38663949 is about 6218.0341748820. The cubic root of 38663949 is about 338.1442989954.

The spelling of 38663949 in words is "thirty-eight million, six hundred sixty-three thousand, nine hundred forty-nine".