38887916 has 6 divisors (see below), whose sum is σ = 68053860. Its totient is φ = 19443956.

The previous prime is 38887913. The next prime is 38887931. The reversal of 38887916 is 61978883.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38887913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4860986 + ... + 4860993.

It is an arithmetic number, because the mean of its divisors is an integer number (11342310).

Almost surely, 2^38887916 is an apocalyptic number.

It is an amenable number.

38887916 is a deficient number, since it is larger than the sum of its proper divisors (29165944).

38887916 is a wasteful number, since it uses less digits than its factorization.

38887916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9721983 (or 9721981 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 38887916 is about 6236.0176394876. The cubic root of 38887916 is about 338.7959603222.

The spelling of 38887916 in words is "thirty-eight million, eight hundred eighty-seven thousand, nine hundred sixteen".