38013289 has 2 divisors, whose sum is σ = 38013290. Its totient is φ = 38013288.

The previous prime is 38013211. The next prime is 38013293. The reversal of 38013289 is 98231083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 16064064 = 4685^2 + 4008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38013289 is a prime.

It is not a weakly prime, because it can be changed into another prime (38013389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19006644 + 19006645.

It is an arithmetic number, because the mean of its divisors is an integer number (19006645).

Almost surely, 2^38013289 is an apocalyptic number.

It is an amenable number.

38013289 is a deficient number, since it is larger than the sum of its proper divisors (1).

38013289 is an equidigital number, since it uses as much as digits as its factorization.

38013289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 38013289 is about 6165.4917889816. The cubic root of 38013289 is about 336.2367267186.

The spelling of 38013289 in words is "thirty-eight million, thirteen thousand, two hundred eighty-nine".