38217013 has 4 divisors (see below), whose sum is σ = 38305708. Its totient is φ = 38128320.

The previous prime is 38216963. The next prime is 38217019. The reversal of 38217013 is 31071283.

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 2241009 + 35976004 = 1497^2 + 5998^2 .

It is a cyclic number.

It is not a de Polignac number, because 38217013 - 2¹⁷ = 38085941 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 (38217019) 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, 43698 + ... + 44563.

It is an arithmetic number, because the mean of its divisors is an integer number (9576427).

Almost surely, 2^38217013 is an apocalyptic number.

It is an amenable number.

38217013 is a deficient number, since it is larger than the sum of its proper divisors (88695).

38217013 is an equidigital number, since it uses as much as digits as its factorization.

38217013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88694.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 38217013 is about 6181.9910223164. The cubic root of 38217013 is about 336.8363195308.

Adding to 38217013 its reverse (31071283), we get a palindrome (69288296).

The spelling of 38217013 in words is "thirty-eight million, two hundred seventeen thousand, thirteen".