38905273 has 4 divisors (see below), whose sum is σ = 42442128. Its totient is φ = 35368420.

The previous prime is 38905267. The next prime is 38905283. The reversal of 38905273 is 37250983.

38905273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38905273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38905253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768411 + ... + 1768432.

It is an arithmetic number, because the mean of its divisors is an integer number (10610532).

Almost surely, 2^38905273 is an apocalyptic number.

It is an amenable number.

38905273 is a deficient number, since it is larger than the sum of its proper divisors (3536855).

38905273 is a wasteful number, since it uses less digits than its factorization.

38905273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536854.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 38905273 is about 6237.4091576551. The cubic root of 38905273 is about 338.8463582128.

The spelling of 38905273 in words is "thirty-eight million, nine hundred five thousand, two hundred seventy-three".