38672819 has 4 divisors (see below), whose sum is σ = 38759400. Its totient is φ = 38586240.

The previous prime is 38672797. The next prime is 38672839. The reversal of 38672819 is 91827683.

38672819 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, and also an emirpimes, since its reverse is a distinct semiprime: 91827683 = 1259 ⋅72937.

It is a cyclic number.

It is not a de Polignac number, because 38672819 - 2¹² = 38668723 is a prime.

It is a super-2 number, since 2×38672819² = 2991173858813522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38672819.

It is not an unprimeable number, because it can be changed into a prime (38672839) 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, 42617 + ... + 43514.

It is an arithmetic number, because the mean of its divisors is an integer number (9689850).

Almost surely, 2^38672819 is an apocalyptic number.

38672819 is a deficient number, since it is larger than the sum of its proper divisors (86581).

38672819 is an equidigital number, since it uses as much as digits as its factorization.

38672819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86580.

The product of its digits is 145152, while the sum is 44.

The square root of 38672819 is about 6218.7473819090. The cubic root of 38672819 is about 338.1701552144.

The spelling of 38672819 in words is "thirty-eight million, six hundred seventy-two thousand, eight hundred nineteen".