38737613 has 2 divisors, whose sum is σ = 38737614. Its totient is φ = 38737612.

The previous prime is 38737597. The next prime is 38737627. The reversal of 38737613 is 31673783.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 17825284 = 4573^2 + 4222^2 .

It is a cyclic number.

It is not a de Polignac number, because 38737613 - 2⁴ = 38737597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38737663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19368806 + 19368807.

It is an arithmetic number, because the mean of its divisors is an integer number (19368807).

Almost surely, 2^38737613 is an apocalyptic number.

It is an amenable number.

38737613 is a deficient number, since it is larger than the sum of its proper divisors (1).

38737613 is an equidigital number, since it uses as much as digits as its factorization.

38737613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 38737613 is about 6223.9547716866. The cubic root of 38737613 is about 338.3589111408.

The spelling of 38737613 in words is "thirty-eight million, seven hundred thirty-seven thousand, six hundred thirteen".