38854861 has 2 divisors, whose sum is σ = 38854862. Its totient is φ = 38854860.

The previous prime is 38854789. The next prime is 38854919. The reversal of 38854861 is 16845883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 352836 = 6205^2 + 594^2 .

It is an emirp because it is prime and its reverse (16845883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38854861 - 2⁹ = 38854349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38854661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19427430 + 19427431.

It is an arithmetic number, because the mean of its divisors is an integer number (19427431).

Almost surely, 2^38854861 is an apocalyptic number.

It is an amenable number.

38854861 is a deficient number, since it is larger than the sum of its proper divisors (1).

38854861 is an equidigital number, since it uses as much as digits as its factorization.

38854861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 43.

The square root of 38854861 is about 6233.3667467910. The cubic root of 38854861 is about 338.6999401342.

The spelling of 38854861 in words is "thirty-eight million, eight hundred fifty-four thousand, eight hundred sixty-one".