38966113 has 4 divisors (see below), whose sum is σ = 39916548. Its totient is φ = 38015680.

The previous prime is 38966107. The next prime is 38966141. The reversal of 38966113 is 31166983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31166983 = 631 ⋅49393.

It can be written as a sum of positive squares in 2 ways, for example, as 5650129 + 33315984 = 2377^2 + 5772^2 .

It is a cyclic number.

It is not a de Polignac number, because 38966113 - 2⁹ = 38965601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38966813) 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, 475156 + ... + 475237.

It is an arithmetic number, because the mean of its divisors is an integer number (9979137).

Almost surely, 2^38966113 is an apocalyptic number.

It is an amenable number.

38966113 is a deficient number, since it is larger than the sum of its proper divisors (950435).

38966113 is an equidigital number, since it uses as much as digits as its factorization.

38966113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950434.

The product of its digits is 23328, while the sum is 37.

The square root of 38966113 is about 6242.2842774100. The cubic root of 38966113 is about 339.0228953422.

The spelling of 38966113 in words is "thirty-eight million, nine hundred sixty-six thousand, one hundred thirteen".