38623213 has 2 divisors, whose sum is σ = 38623214. Its totient is φ = 38623212.

The previous prime is 38623183. The next prime is 38623223. The reversal of 38623213 is 31232683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22155849 + 16467364 = 4707^2 + 4058^2 .

It is a cyclic number.

It is not a de Polignac number, because 38623213 - 2²⁵ = 5068781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38623223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19311606 + 19311607.

It is an arithmetic number, because the mean of its divisors is an integer number (19311607).

Almost surely, 2^38623213 is an apocalyptic number.

It is an amenable number.

38623213 is a deficient number, since it is larger than the sum of its proper divisors (1).

38623213 is an equidigital number, since it uses as much as digits as its factorization.

38623213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 38623213 is about 6214.7576783009. The cubic root of 38623213 is about 338.0255019681.

Adding to 38623213 its reverse (31232683), we get a palindrome (69855896).

The spelling of 38623213 in words is "thirty-eight million, six hundred twenty-three thousand, two hundred thirteen".