38386947 has 8 divisors (see below), whose sum is σ = 52431120. Its totient is φ = 24967040.

The previous prime is 38386927. The next prime is 38386951. The reversal of 38386947 is 74968383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38386947 - 2⁶ = 38386883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38386896 and 38386905.

It is not an unprimeable number, because it can be changed into a prime (38386927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155922 + ... + 156167.

It is an arithmetic number, because the mean of its divisors is an integer number (6553890).

Almost surely, 2^38386947 is an apocalyptic number.

38386947 is a deficient number, since it is larger than the sum of its proper divisors (14044173).

38386947 is a wasteful number, since it uses less digits than its factorization.

38386947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312133.

The product of its digits is 870912, while the sum is 48.

The square root of 38386947 is about 6195.7200550057. The cubic root of 38386947 is about 337.3348349601.

The spelling of 38386947 in words is "thirty-eight million, three hundred eighty-six thousand, nine hundred forty-seven".