38782693 has 4 divisors (see below), whose sum is σ = 39159328. Its totient is φ = 38406060.

The previous prime is 38782649. The next prime is 38782703. The reversal of 38782693 is 39628783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38782693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38782613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188163 + ... + 188368.

It is an arithmetic number, because the mean of its divisors is an integer number (9789832).

Almost surely, 2^38782693 is an apocalyptic number.

It is an amenable number.

38782693 is a deficient number, since it is larger than the sum of its proper divisors (376635).

38782693 is a wasteful number, since it uses less digits than its factorization.

38782693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376634.

The product of its digits is 435456, while the sum is 46.

The square root of 38782693 is about 6227.5752103046. The cubic root of 38782693 is about 338.4901127086.

The spelling of 38782693 in words is "thirty-eight million, seven hundred eighty-two thousand, six hundred ninety-three".