38763643 has 4 divisors (see below), whose sum is σ = 38778688. Its totient is φ = 38748600.

The previous prime is 38763619. The next prime is 38763653. The reversal of 38763643 is 34636783.

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

It is a cyclic number.

It is not a de Polignac number, because 38763643 - 2⁵ = 38763611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38763596 and 38763605.

It is not an unprimeable number, because it can be changed into a prime (38763653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571 + ... + 9172.

It is an arithmetic number, because the mean of its divisors is an integer number (9694672).

Almost surely, 2^38763643 is an apocalyptic number.

38763643 is a deficient number, since it is larger than the sum of its proper divisors (15045).

38763643 is a wasteful number, since it uses less digits than its factorization.

38763643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15044.

The product of its digits is 217728, while the sum is 40.

The square root of 38763643 is about 6226.0455346873. The cubic root of 38763643 is about 338.4346816884.

The spelling of 38763643 in words is "thirty-eight million, seven hundred sixty-three thousand, six hundred forty-three".