38857001 has 4 divisors (see below), whose sum is σ = 38915412. Its totient is φ = 38798592.

The previous prime is 38856977. The next prime is 38857069. The reversal of 38857001 is 10075883.

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 8065600 + 30791401 = 2840^2 + 5549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38857001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38857201) 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 3 ways as a sum of consecutive naturals, for example, 28196 + ... + 29541.

It is an arithmetic number, because the mean of its divisors is an integer number (9728853).

Almost surely, 2^38857001 is an apocalyptic number.

It is an amenable number.

38857001 is a deficient number, since it is larger than the sum of its proper divisors (58411).

38857001 is an equidigital number, since it uses as much as digits as its factorization.

38857001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58410.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 38857001 is about 6233.5384012614. The cubic root of 38857001 is about 338.7061581856.

The spelling of 38857001 in words is "thirty-eight million, eight hundred fifty-seven thousand, one".