38578665 has 8 divisors (see below), whose sum is σ = 61725888. Its totient is φ = 20575280.

The previous prime is 38578651. The next prime is 38578691. The reversal of 38578665 is 56687583.

38578665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38578665 - 2¹⁴ = 38562281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285941 + ... + 1285970.

It is an arithmetic number, because the mean of its divisors is an integer number (7715736).

Almost surely, 2^38578665 is an apocalyptic number.

It is an amenable number.

38578665 is a deficient number, since it is larger than the sum of its proper divisors (23147223).

38578665 is a wasteful number, since it uses less digits than its factorization.

38578665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571919.

The product of its digits is 1209600, while the sum is 48.

The square root of 38578665 is about 6211.1725946072. The cubic root of 38578665 is about 337.8954924735.

The spelling of 38578665 in words is "thirty-eight million, five hundred seventy-eight thousand, six hundred sixty-five".