38628793 has 4 divisors (see below), whose sum is σ = 44147200. Its totient is φ = 33110388.

The previous prime is 38628791. The next prime is 38628809. The reversal of 38628793 is 39782683.

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 not a de Polignac number, because 38628793 - 2¹ = 38628791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38628791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759193 + ... + 2759206.

It is an arithmetic number, because the mean of its divisors is an integer number (11036800).

Almost surely, 2^38628793 is an apocalyptic number.

It is an amenable number.

38628793 is a deficient number, since it is larger than the sum of its proper divisors (5518407).

38628793 is an equidigital number, since it uses as much as digits as its factorization.

38628793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518406.

The product of its digits is 435456, while the sum is 46.

The square root of 38628793 is about 6215.2065935092. The cubic root of 38628793 is about 338.0417796703.

The spelling of 38628793 in words is "thirty-eight million, six hundred twenty-eight thousand, seven hundred ninety-three".