38747997 has 8 divisors (see below), whose sum is σ = 57404480. Its totient is φ = 25831980.

The previous prime is 38747983. The next prime is 38748001. The reversal of 38747997 is 79974783.

38747997 is a `hidden beast` number, since 3 + 87 + 479 + 97 = 666.

It is not a de Polignac number, because 38747997 - 2⁷ = 38747869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38747927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717529 + ... + 717582.

It is an arithmetic number, because the mean of its divisors is an integer number (7175560).

Almost surely, 2^38747997 is an apocalyptic number.

It is an amenable number.

38747997 is a deficient number, since it is larger than the sum of its proper divisors (18656483).

38747997 is a wasteful number, since it uses less digits than its factorization.

38747997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435120 (or 1435114 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 38747997 is about 6224.7889120837. The cubic root of 38747997 is about 338.3891419231.

It can be divided in two parts, 387 and 47997, that added together give a palindrome (48384).

The spelling of 38747997 in words is "thirty-eight million, seven hundred forty-seven thousand, nine hundred ninety-seven".