38861771 has 4 divisors (see below), whose sum is σ = 41851152. Its totient is φ = 35872392.

The previous prime is 38861747. The next prime is 38861777. The reversal of 38861771 is 17716883.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38861771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38861777) 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, 1494671 + ... + 1494696.

It is an arithmetic number, because the mean of its divisors is an integer number (10462788).

Almost surely, 2^38861771 is an apocalyptic number.

38861771 is a deficient number, since it is larger than the sum of its proper divisors (2989381).

38861771 is a wasteful number, since it uses less digits than its factorization.

38861771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989380.

The product of its digits is 56448, while the sum is 41.

The square root of 38861771 is about 6233.9209972537. The cubic root of 38861771 is about 338.7200172262.

The spelling of 38861771 in words is "thirty-eight million, eight hundred sixty-one thousand, seven hundred seventy-one".