38889853 has 4 divisors (see below), whose sum is σ = 39838428. Its totient is φ = 37941280.

The previous prime is 38889817. The next prime is 38889859. The reversal of 38889853 is 35898883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8892324 + 29997529 = 2982^2 + 5477^2 .

It is a cyclic number.

It is not a de Polignac number, because 38889853 - 2⁹ = 38889341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38889853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38889859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474226 + ... + 474307.

It is an arithmetic number, because the mean of its divisors is an integer number (9959607).

Almost surely, 2^38889853 is an apocalyptic number.

It is an amenable number.

38889853 is a deficient number, since it is larger than the sum of its proper divisors (948575).

38889853 is an equidigital number, since it uses as much as digits as its factorization.

38889853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948574.

The product of its digits is 1658880, while the sum is 52.

The square root of 38889853 is about 6236.1729450040. The cubic root of 38889853 is about 338.8015853504.

The spelling of 38889853 in words is "thirty-eight million, eight hundred eighty-nine thousand, eight hundred fifty-three".