38656671 has 4 divisors (see below), whose sum is σ = 51542232. Its totient is φ = 25771112.

The previous prime is 38656649. The next prime is 38656687. The reversal of 38656671 is 17665683.

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 38656671 - 2⁷ = 38656543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38656571) 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, 6442776 + ... + 6442781.

It is an arithmetic number, because the mean of its divisors is an integer number (12885558).

Almost surely, 2^38656671 is an apocalyptic number.

38656671 is a deficient number, since it is larger than the sum of its proper divisors (12885561).

38656671 is a wasteful number, since it uses less digits than its factorization.

38656671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12885560.

The product of its digits is 181440, while the sum is 42.

The square root of 38656671 is about 6217.4489141448. The cubic root of 38656671 is about 338.1230805330.

The spelling of 38656671 in words is "thirty-eight million, six hundred fifty-six thousand, six hundred seventy-one".