38971669 has 8 divisors (see below), whose sum is σ = 42572160. Its totient is φ = 35380800.

The previous prime is 38971651. The next prime is 38971711. The reversal of 38971669 is 96617983.

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 38971669 - 2¹⁵ = 38938901 is a prime.

It is a super-2 number, since 2×38971669² = 3037581969291122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38977669) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8077 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (5321520).

Almost surely, 2^38971669 is an apocalyptic number.

It is an amenable number.

38971669 is a deficient number, since it is larger than the sum of its proper divisors (3600491).

38971669 is a wasteful number, since it uses less digits than its factorization.

38971669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811.

The product of its digits is 489888, while the sum is 49.

The square root of 38971669 is about 6242.7292909432. The cubic root of 38971669 is about 339.0390078183.

The spelling of 38971669 in words is "thirty-eight million, nine hundred seventy-one thousand, six hundred sixty-nine".