38891061 has 24 divisors (see below), whose sum is σ = 62034336. Its totient is φ = 23281440.

The previous prime is 38891023. The next prime is 38891063. The reversal of 38891061 is 16019883.

38891061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38891061 - 2⁶ = 38890997 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38891063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5851 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (2584764).

Almost surely, 2^38891061 is an apocalyptic number.

It is an amenable number.

38891061 is a deficient number, since it is larger than the sum of its proper divisors (23143275).

38891061 is a wasteful number, since it uses less digits than its factorization.

38891061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 38891061 is about 6236.2697985254. The cubic root of 38891061 is about 338.8050932756.

It can be divided in two parts, 3889 and 1061, that added together give a triangular number (4950 = T₉₉).

The spelling of 38891061 in words is "thirty-eight million, eight hundred ninety-one thousand, sixty-one".