38647956 has 12 divisors (see below), whose sum is σ = 90178592. Its totient is φ = 12882648.

The previous prime is 38647951. The next prime is 38647963. The reversal of 38647956 is 65974683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38647951) 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, 1610320 + ... + 1610343.

Almost surely, 2^38647956 is an apocalyptic number.

It is an amenable number.

38647956 is an abundant number, since it is smaller than the sum of its proper divisors (51530636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38647956 is a wasteful number, since it uses less digits than its factorization.

38647956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220670 (or 3220668 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 38647956 is about 6216.7480244900. The cubic root of 38647956 is about 338.0976691008.

The spelling of 38647956 in words is "thirty-eight million, six hundred forty-seven thousand, nine hundred fifty-six".