38009917 has 4 divisors (see below), whose sum is σ = 41465376. Its totient is φ = 34554460.

The previous prime is 38009903. The next prime is 38009927. The reversal of 38009917 is 71990083.

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 38009917 - 2⁷ = 38009789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38009927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1727713 + ... + 1727734.

It is an arithmetic number, because the mean of its divisors is an integer number (10366344).

Almost surely, 2^38009917 is an apocalyptic number.

It is an amenable number.

38009917 is a deficient number, since it is larger than the sum of its proper divisors (3455459).

38009917 is a wasteful number, since it uses less digits than its factorization.

38009917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455458.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 38009917 is about 6165.2183254123. The cubic root of 38009917 is about 336.2267843730.

The spelling of 38009917 in words is "thirty-eight million, nine thousand, nine hundred seventeen".