38730973 has 4 divisors (see below), whose sum is σ = 38842300. Its totient is φ = 38619648.

The previous prime is 38730959. The next prime is 38730983. The reversal of 38730973 is 37903783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27688644 + 11042329 = 5262^2 + 3323^2 .

It is a cyclic number.

It is not a de Polignac number, because 38730973 - 2¹³ = 38722781 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 (38730983) 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 3 ways as a sum of consecutive naturals, for example, 55140 + ... + 55837.

It is an arithmetic number, because the mean of its divisors is an integer number (9710575).

Almost surely, 2^38730973 is an apocalyptic number.

It is an amenable number.

38730973 is a deficient number, since it is larger than the sum of its proper divisors (111327).

38730973 is a wasteful number, since it uses less digits than its factorization.

38730973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111326.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 38730973 is about 6223.4213259268. The cubic root of 38730973 is about 338.3395773773.

The spelling of 38730973 in words is "thirty-eight million, seven hundred thirty thousand, nine hundred seventy-three".