38719213 has 4 divisors (see below), whose sum is σ = 41697628. Its totient is φ = 35740800.

The previous prime is 38719171. The next prime is 38719223. The reversal of 38719213 is 31291783.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5391684 + 33327529 = 2322^2 + 5773^2 .

It is a cyclic number.

It is not a de Polignac number, because 38719213 - 2¹⁷ = 38588141 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 (38719223) 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, 1489188 + ... + 1489213.

It is an arithmetic number, because the mean of its divisors is an integer number (10424407).

Almost surely, 2^38719213 is an apocalyptic number.

It is an amenable number.

38719213 is a deficient number, since it is larger than the sum of its proper divisors (2978415).

38719213 is a wasteful number, since it uses less digits than its factorization.

38719213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978414.

The product of its digits is 9072, while the sum is 34.

The square root of 38719213 is about 6222.4764362752. The cubic root of 38719213 is about 338.3053302283.

It can be divided in two parts, 387 and 19213, that added together give a square (19600 = 140²).

The spelling of 38719213 in words is "thirty-eight million, seven hundred nineteen thousand, two hundred thirteen".