38997169 has 4 divisors (see below), whose sum is σ = 39826944. Its totient is φ = 38167396.

The previous prime is 38997157. The next prime is 38997193. The reversal of 38997169 is 96179983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38997169 - 2¹³ = 38988977 is a prime.

It is a super-3 number, since 3×38997169³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38994169) 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 3 ways as a sum of consecutive naturals, for example, 414817 + ... + 414910.

It is an arithmetic number, because the mean of its divisors is an integer number (9956736).

Almost surely, 2^38997169 is an apocalyptic number.

It is an amenable number.

38997169 is a deficient number, since it is larger than the sum of its proper divisors (829775).

38997169 is an equidigital number, since it uses as much as digits as its factorization.

38997169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829774.

The product of its digits is 734832, while the sum is 52.

The square root of 38997169 is about 6244.7713328832. The cubic root of 38997169 is about 339.1129385306.

The spelling of 38997169 in words is "thirty-eight million, nine hundred ninety-seven thousand, one hundred sixty-nine".