79741861 has 2 divisors, whose sum is σ = 79741862. Its totient is φ = 79741860.

The previous prime is 79741847. The next prime is 79741873. The reversal of 79741861 is 16814797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53012961 + 26728900 = 7281^2 + 5170^2 .

It is a cyclic number.

It is not a de Polignac number, because 79741861 - 2¹³ = 79733669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79741801) 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 as a sum of consecutive naturals, namely, 39870930 + 39870931.

It is an arithmetic number, because the mean of its divisors is an integer number (39870931).

Almost surely, 2^79741861 is an apocalyptic number.

It is an amenable number.

79741861 is a deficient number, since it is larger than the sum of its proper divisors (1).

79741861 is an equidigital number, since it uses as much as digits as its factorization.

79741861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 79741861 is about 8929.8298416039. The cubic root of 79741861 is about 430.4229856167.

The spelling of 79741861 in words is "seventy-nine million, seven hundred forty-one thousand, eight hundred sixty-one".