38255989 has 2 divisors, whose sum is σ = 38255990. Its totient is φ = 38255988.

The previous prime is 38255977. The next prime is 38256011. The reversal of 38255989 is 98955283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38254225 + 1764 = 6185^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 38255989 - 2¹⁵ = 38223221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38255909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19127994 + 19127995.

It is an arithmetic number, because the mean of its divisors is an integer number (19127995).

Almost surely, 2^38255989 is an apocalyptic number.

It is an amenable number.

38255989 is a deficient number, since it is larger than the sum of its proper divisors (1).

38255989 is an equidigital number, since it uses as much as digits as its factorization.

38255989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 49.

The square root of 38255989 is about 6185.1426014280. The cubic root of 38255989 is about 336.9507892464.

The spelling of 38255989 in words is "thirty-eight million, two hundred fifty-five thousand, nine hundred eighty-nine".