38997968 has 20 divisors (see below), whose sum is σ = 77167680. Its totient is φ = 19083744.

The previous prime is 38997943. The next prime is 38997991. The reversal of 38997968 is 86979983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25178 + ... + 26681.

It is an arithmetic number, because the mean of its divisors is an integer number (3858384).

Almost surely, 2^38997968 is an apocalyptic number.

It is an amenable number.

38997968 is a deficient number, since it is larger than the sum of its proper divisors (38169712).

38997968 is a wasteful number, since it uses less digits than its factorization.

38997968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51914 (or 51908 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 59.

The square root of 38997968 is about 6244.8353060749. The cubic root of 38997968 is about 339.1152545054.

The spelling of 38997968 in words is "thirty-eight million, nine hundred ninety-seven thousand, nine hundred sixty-eight".