38568961 has 4 divisors (see below), whose sum is σ = 38668500. Its totient is φ = 38469424.

The previous prime is 38568931. The next prime is 38568967. The reversal of 38568961 is 16986583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16986583 = 3547 ⋅4789.

It can be written as a sum of positive squares in 2 ways, for example, as 20421361 + 18147600 = 4519^2 + 4260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38568961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38568967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49186 + ... + 49963.

It is an arithmetic number, because the mean of its divisors is an integer number (9667125).

Almost surely, 2^38568961 is an apocalyptic number.

It is an amenable number.

38568961 is a deficient number, since it is larger than the sum of its proper divisors (99539).

38568961 is an equidigital number, since it uses as much as digits as its factorization.

38568961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99538.

The product of its digits is 311040, while the sum is 46.

The square root of 38568961 is about 6210.3913725304. The cubic root of 38568961 is about 337.8671589129.

The spelling of 38568961 in words is "thirty-eight million, five hundred sixty-eight thousand, nine hundred sixty-one".