38963655 has 12 divisors (see below), whose sum is σ = 67537080. Its totient is φ = 20780592.

The previous prime is 38963641. The next prime is 38963657. The reversal of 38963655 is 55636983.

38963655 is a `hidden beast` number, since 3 + 8 + 9 + 636 + 5 + 5 = 666.

It is not a de Polignac number, because 38963655 - 2⁶ = 38963591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 865859 = 38963655 / (3 + 8 + 9 + 6 + 3 + 6 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 38963655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38963657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432885 + ... + 432974.

It is an arithmetic number, because the mean of its divisors is an integer number (5628090).

Almost surely, 2^38963655 is an apocalyptic number.

38963655 is a deficient number, since it is larger than the sum of its proper divisors (28573425).

38963655 is a wasteful number, since it uses less digits than its factorization.

38963655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865870 (or 865867 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 38963655 is about 6242.0873912498. The cubic root of 38963655 is about 339.0157666199.

The spelling of 38963655 in words is "thirty-eight million, nine hundred sixty-three thousand, six hundred fifty-five".