38816613 has 12 divisors (see below), whose sum is σ = 61165728. Its totient is φ = 23525160.

The previous prime is 38816597. The next prime is 38816633. The reversal of 38816613 is 31661883.

38816613 is a `hidden beast` number, since 38 + 8 + 1 + 6 + 613 = 666.

It is not a de Polignac number, because 38816613 - 2⁴ = 38816597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38816633) 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 in 11 ways as a sum of consecutive naturals, for example, 195945 + ... + 196142.

It is an arithmetic number, because the mean of its divisors is an integer number (5097144).

Almost surely, 2^38816613 is an apocalyptic number.

38816613 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38816613 is a deficient number, since it is larger than the sum of its proper divisors (22349115).

38816613 is a wasteful number, since it uses less digits than its factorization.

38816613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392104 (or 392101 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 38816613 is about 6230.2979864530. The cubic root of 38816613 is about 338.5887670140.

The spelling of 38816613 in words is "thirty-eight million, eight hundred sixteen thousand, six hundred thirteen".