39196861 has 12 divisors (see below), whose sum is σ = 44140572. Its totient is φ = 34760000.

The previous prime is 39196847. The next prime is 39196873. The reversal of 39196861 is 16869193.

39196861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12467961 + 26728900 = 3531^2 + 5170^2 .

It is a de Polignac number, because none of the positive numbers 2^k-39196861 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 (39196811) 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 11 ways as a sum of consecutive naturals, for example, 1011 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (3678381).

Almost surely, 2^39196861 is an apocalyptic number.

It is an amenable number.

39196861 is a deficient number, since it is larger than the sum of its proper divisors (4943711).

39196861 is a wasteful number, since it uses less digits than its factorization.

39196861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964 (or 7953 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 39196861 is about 6260.7396527886. The cubic root of 39196861 is about 339.6907828778.

The spelling of 39196861 in words is "thirty-nine million, one hundred ninety-six thousand, eight hundred sixty-one".