38684853 has 18 divisors (see below), whose sum is σ = 57296642. Its totient is φ = 25151040.

The previous prime is 38684851. The next prime is 38684857. The reversal of 38684853 is 35848683.

It can be written as a sum of positive squares in 3 ways, for example, as 1633284 + 37051569 = 1278^2 + 6087^2 .

It is not a de Polignac number, because 38684853 - 2¹ = 38684851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38684799 and 38684808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38684851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13851 + ... + 16407.

Almost surely, 2^38684853 is an apocalyptic number.

It is an amenable number.

38684853 is a deficient number, since it is larger than the sum of its proper divisors (18611789).

38684853 is a wasteful number, since it uses less digits than its factorization.

38684853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645 (or 2601 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 38684853 is about 6219.7148648471. The cubic root of 38684853 is about 338.2052282339.

The spelling of 38684853 in words is "thirty-eight million, six hundred eighty-four thousand, eight hundred fifty-three".