38208857 has 8 divisors (see below), whose sum is σ = 39174120. Its totient is φ = 37255680.

The previous prime is 38208853. The next prime is 38208881. The reversal of 38208857 is 75880283.

It can be written as a sum of positive squares in 4 ways, for example, as 7027801 + 31181056 = 2651^2 + 5584^2 .

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 38208857 - 2² = 38208853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38208851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3557 + ... + 9437.

It is an arithmetic number, because the mean of its divisors is an integer number (4896765).

Almost surely, 2^38208857 is an apocalyptic number.

It is an amenable number.

38208857 is a deficient number, since it is larger than the sum of its proper divisors (965263).

38208857 is an equidigital number, since it uses as much as digits as its factorization.

38208857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6043.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 38208857 is about 6181.3313290908. The cubic root of 38208857 is about 336.8123560979.

The spelling of 38208857 in words is "thirty-eight million, two hundred eight thousand, eight hundred fifty-seven".