79867061 has 4 divisors (see below), whose sum is σ = 81220800. Its totient is φ = 78513324.

The previous prime is 79867031. The next prime is 79867091. The reversal of 79867061 is 16076897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16076897 = 541 ⋅29717.

It is an interprime number because it is at equal distance from previous prime (79867031) and next prime (79867091).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79867061 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 (79867001) 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 3 ways as a sum of consecutive naturals, for example, 676781 + ... + 676898.

It is an arithmetic number, because the mean of its divisors is an integer number (20305200).

Almost surely, 2^79867061 is an apocalyptic number.

It is an amenable number.

79867061 is a deficient number, since it is larger than the sum of its proper divisors (1353739).

79867061 is a wasteful number, since it uses less digits than its factorization.

79867061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353738.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 79867061 is about 8936.8373041026. The cubic root of 79867061 is about 430.6481320188.

The spelling of 79867061 in words is "seventy-nine million, eight hundred sixty-seven thousand, sixty-one".