38691323 has 6 divisors (see below), whose sum is σ = 42528612. Its totient is φ = 35173820.

The previous prime is 38691319. The next prime is 38691329. The reversal of 38691323 is 32319683.

It is not a de Polignac number, because 38691323 - 2² = 38691319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38691329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159761 + ... + 160002.

It is an arithmetic number, because the mean of its divisors is an integer number (7088102).

Almost surely, 2^38691323 is an apocalyptic number.

38691323 is a deficient number, since it is larger than the sum of its proper divisors (3837289).

38691323 is a wasteful number, since it uses less digits than its factorization.

38691323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319785 (or 319774 counting only the distinct ones).

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

The square root of 38691323 is about 6220.2349634077. The cubic root of 38691323 is about 338.2240820029.

The spelling of 38691323 in words is "thirty-eight million, six hundred ninety-one thousand, three hundred twenty-three".