38828217 has 4 divisors (see below), whose sum is σ = 51770960. Its totient is φ = 25885476.

The previous prime is 38828203. The next prime is 38828239. The reversal of 38828217 is 71282883.

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 not a de Polignac number, because 38828217 - 2⁸ = 38827961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38828287) 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, 6471367 + ... + 6471372.

It is an arithmetic number, because the mean of its divisors is an integer number (12942740).

Almost surely, 2^38828217 is an apocalyptic number.

It is an amenable number.

38828217 is a deficient number, since it is larger than the sum of its proper divisors (12942743).

38828217 is a wasteful number, since it uses less digits than its factorization.

38828217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942742.

The product of its digits is 43008, while the sum is 39.

The square root of 38828217 is about 6231.2291724827. The cubic root of 38828217 is about 338.6225033647.

The spelling of 38828217 in words is "thirty-eight million, eight hundred twenty-eight thousand, two hundred seventeen".