38443047 has 4 divisors (see below), whose sum is σ = 51257400. Its totient is φ = 25628696.

The previous prime is 38442997. The next prime is 38443049. The reversal of 38443047 is 74034483.

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 38443047 - 2⁶ = 38442983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38442999 and 38443017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38443049) 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 3 ways as a sum of consecutive naturals, for example, 6407172 + ... + 6407177.

It is an arithmetic number, because the mean of its divisors is an integer number (12814350).

Almost surely, 2^38443047 is an apocalyptic number.

38443047 is a deficient number, since it is larger than the sum of its proper divisors (12814353).

38443047 is a wasteful number, since it uses less digits than its factorization.

38443047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12814352.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 38443047 is about 6200.2457209372. The cubic root of 38443047 is about 337.4990858686.

The spelling of 38443047 in words is "thirty-eight million, four hundred forty-three thousand, forty-seven".