38969866 has 16 divisors (see below), whose sum is σ = 65689344. Its totient is φ = 17203824.

The previous prime is 38969863. The next prime is 38969869. The reversal of 38969866 is 66896983.

It is an interprime number because it is at equal distance from previous prime (38969863) and next prime (38969869).

It is not an unprimeable number, because it can be changed into a prime (38969863) 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, 31986 + ... + 33181.

It is an arithmetic number, because the mean of its divisors is an integer number (4105584).

Almost surely, 2^38969866 is an apocalyptic number.

38969866 is a deficient number, since it is larger than the sum of its proper divisors (26719478).

38969866 is a wasteful number, since it uses less digits than its factorization.

38969866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65205.

The product of its digits is 3359232, while the sum is 55.

The square root of 38969866 is about 6242.5848812812. The cubic root of 38969866 is about 339.0337792615.

The spelling of 38969866 in words is "thirty-eight million, nine hundred sixty-nine thousand, eight hundred sixty-six".