38323691 has 4 divisors (see below), whose sum is σ = 43798512. Its totient is φ = 32848872.

The previous prime is 38323687. The next prime is 38323697. The reversal of 38323691 is 19632383.

38323691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38323691 - 2² = 38323687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38323697) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2737400 + ... + 2737413.

It is an arithmetic number, because the mean of its divisors is an integer number (10949628).

Almost surely, 2^38323691 is an apocalyptic number.

38323691 is a deficient number, since it is larger than the sum of its proper divisors (5474821).

38323691 is an equidigital number, since it uses as much as digits as its factorization.

38323691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474820.

The product of its digits is 23328, while the sum is 35.

The square root of 38323691 is about 6190.6131360310. The cubic root of 38323691 is about 337.1494404827.

The spelling of 38323691 in words is "thirty-eight million, three hundred twenty-three thousand, six hundred ninety-one".