38856393 has 6 divisors (see below), whose sum is σ = 56125914. Its totient is φ = 25904256.

The previous prime is 38856371. The next prime is 38856403. The reversal of 38856393 is 39365883.

38856393 is a `hidden beast` number, since 3 + 8 + 8 + 5 + 639 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 9566649 = 5412^2 + 3093^2 .

It is not a de Polignac number, because 38856393 - 2⁸ = 38856137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38856313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2158680 + ... + 2158697.

It is an arithmetic number, because the mean of its divisors is an integer number (9354319).

Almost surely, 2^38856393 is an apocalyptic number.

It is an amenable number.

38856393 is a deficient number, since it is larger than the sum of its proper divisors (17269521).

38856393 is a wasteful number, since it uses less digits than its factorization.

38856393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317383 (or 4317380 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 38856393 is about 6233.4896326215. The cubic root of 38856393 is about 338.7043915848.

The spelling of 38856393 in words is "thirty-eight million, eight hundred fifty-six thousand, three hundred ninety-three".