38489663 has 8 divisors (see below), whose sum is σ = 39517632. Its totient is φ = 37470496.

The previous prime is 38489651. The next prime is 38489681. The reversal of 38489663 is 36698483.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38489663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38489623) 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, 7181 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (4939704).

Almost surely, 2^38489663 is an apocalyptic number.

38489663 is a deficient number, since it is larger than the sum of its proper divisors (1027969).

38489663 is a wasteful number, since it uses less digits than its factorization.

38489663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401.

The product of its digits is 746496, while the sum is 47.

The square root of 38489663 is about 6204.0037878776. The cubic root of 38489663 is about 337.6354477830.

Subtracting from 38489663 its sum of digits (47), we obtain a square (38489616 = 6204²).

The spelling of 38489663 in words is "thirty-eight million, four hundred eighty-nine thousand, six hundred sixty-three".