38963668 has 6 divisors (see below), whose sum is σ = 68186426. Its totient is φ = 19481832.

The previous prime is 38963657. The next prime is 38963681. The reversal of 38963668 is 86636983.

It can be written as a sum of positive squares in only one way, i.e., 22867524 + 16096144 = 4782^2 + 4012^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4870455 + ... + 4870462.

Almost surely, 2^38963668 is an apocalyptic number.

It is an amenable number.

38963668 is a deficient number, since it is larger than the sum of its proper divisors (29222758).

38963668 is a wasteful number, since it uses less digits than its factorization.

38963668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740921 (or 9740919 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 38963668 is about 6242.0884325681. The cubic root of 38963668 is about 339.0158043235.

The spelling of 38963668 in words is "thirty-eight million, nine hundred sixty-three thousand, six hundred sixty-eight".