38836661 has 2 divisors, whose sum is σ = 38836662. Its totient is φ = 38836660.

The previous prime is 38836649. The next prime is 38836723. The reversal of 38836661 is 16663883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20295025 + 18541636 = 4505^2 + 4306^2 .

It is an emirp because it is prime and its reverse (16663883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38836661 - 2¹⁰ = 38835637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38838661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19418330 + 19418331.

It is an arithmetic number, because the mean of its divisors is an integer number (19418331).

Almost surely, 2^38836661 is an apocalyptic number.

It is an amenable number.

38836661 is a deficient number, since it is larger than the sum of its proper divisors (1).

38836661 is an equidigital number, since it uses as much as digits as its factorization.

38836661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 38836661 is about 6231.9066905723. The cubic root of 38836661 is about 338.6470484111.

The spelling of 38836661 in words is "thirty-eight million, eight hundred thirty-six thousand, six hundred sixty-one".