38857061 has 4 divisors (see below), whose sum is σ = 39494124. Its totient is φ = 38220000.

The previous prime is 38856977. The next prime is 38857069. The reversal of 38857061 is 16075883.

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 8673025 + 30184036 = 2945^2 + 5494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38857061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857069) 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, 318440 + ... + 318561.

It is an arithmetic number, because the mean of its divisors is an integer number (9873531).

Almost surely, 2^38857061 is an apocalyptic number.

It is an amenable number.

38857061 is a deficient number, since it is larger than the sum of its proper divisors (637063).

38857061 is an equidigital number, since it uses as much as digits as its factorization.

38857061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637062.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 38857061 is about 6233.5432139354. The cubic root of 38857061 is about 338.7063325202.

The spelling of 38857061 in words is "thirty-eight million, eight hundred fifty-seven thousand, sixty-one".