38749223 has 4 divisors (see below), whose sum is σ = 39694368. Its totient is φ = 37804080.

The previous prime is 38749219. The next prime is 38749237. The reversal of 38749223 is 32294783.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38749223 - 2² = 38749219 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 (38749283) 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, 472511 + ... + 472592.

It is an arithmetic number, because the mean of its divisors is an integer number (9923592).

Almost surely, 2^38749223 is an apocalyptic number.

38749223 is a deficient number, since it is larger than the sum of its proper divisors (945145).

38749223 is an equidigital number, since it uses as much as digits as its factorization.

38749223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945144.

The product of its digits is 72576, while the sum is 38.

The square root of 38749223 is about 6224.8873885397. The cubic root of 38749223 is about 338.3927108019.

The spelling of 38749223 in words is "thirty-eight million, seven hundred forty-nine thousand, two hundred twenty-three".