38747081 has 8 divisors (see below), whose sum is σ = 39588480. Its totient is φ = 37909872.

The previous prime is 38747069. The next prime is 38747087. The reversal of 38747081 is 18074783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38747081 - 2¹⁴ = 38730697 is a prime.

It is a super-2 number, since 2×38747081² = 3002672572041122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38747087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23750 + ... + 25328.

It is an arithmetic number, because the mean of its divisors is an integer number (4948560).

Almost surely, 2^38747081 is an apocalyptic number.

It is an amenable number.

38747081 is a deficient number, since it is larger than the sum of its proper divisors (841399).

38747081 is a wasteful number, since it uses less digits than its factorization.

38747081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 38747081 is about 6224.7153348567. The cubic root of 38747081 is about 338.3864754034.

The spelling of 38747081 in words is "thirty-eight million, seven hundred forty-seven thousand, eighty-one".