38726489 has 2 divisors, whose sum is σ = 38726490. Its totient is φ = 38726488.

The previous prime is 38726461. The next prime is 38726507. The reversal of 38726489 is 98462783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34904464 + 3822025 = 5908^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 38726489 - 2²⁴ = 21949273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38776489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19363244 + 19363245.

It is an arithmetic number, because the mean of its divisors is an integer number (19363245).

Almost surely, 2^38726489 is an apocalyptic number.

It is an amenable number.

38726489 is a deficient number, since it is larger than the sum of its proper divisors (1).

38726489 is an equidigital number, since it uses as much as digits as its factorization.

38726489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 38726489 is about 6223.0610634960. The cubic root of 38726489 is about 338.3265200135.

The spelling of 38726489 in words is "thirty-eight million, seven hundred twenty-six thousand, four hundred eighty-nine".